Information Systems: 16th European, Mediterranean, and Middle Eastern Conference, EMCIS 2019, Dubai, United Arab Emirates, December 9–10, 2019, ... in Business Information Processing, 381)

Preface
Organization
Contents
Big Data and Analytics
A Practice Based Exploration on Electric Mobility as a Service in Smart Cities
	Abstract
	1 Introduction
	2 Literature Review
		2.1 eMaaS and Big Data in Smart Cities
		2.2 API for Data Interoperability
		2.3 Background of Enterprise Architecture
		2.4 Related Works
	3 Application of EA in eMaaS
		3.1 Context Layer
		3.2 Service Layer
		3.3 Business Layer
		3.4 Application and Data Processing Layer
		3.5 Data Space Layer
		3.6 Technology Layer
		3.7 Physical Infrastructures Layer
	4 Results
	5 Discussion and Implications
	6 Conclusion, Limitations, and Future Directions
	Acknowledgements
	References
An Experimental Comparison of Machine Learning Classification Algorithms for Breast Cancer Diagnosis
	Abstract
	1 Introduction
	2 Related Work on Breast Cancer Diagnosis
	3 Data Pre-processing
		3.1 Data Distribution
		3.2 Correlation Matrix
		3.3 Principal Component Analysis
	4 Machine Learning Algorithms
		4.1 CART (Classification and Regression Trees)
		4.2 K-Nearest Neighbours
		4.3 Naïve Bayes
		4.4 SVM (Radial Basis Function Kernel)
	5 Results and Discussion
	6 Conclusions
	7 Future Work
	References
Taking Complexity into Account: A Structured Literature Review on Multi-component Systems in the Context of Predictive Maintenance
	Abstract
	1 Introduction
	2 Background
		2.1 Multi Component Systems
		2.2 Predictive Maintenance
	3 Methodology
	4 Results
		4.1 Characteristics of MCS
		4.2 Decision Support for Maintenance of MCS
		4.3 Improve Decision Quality
	5 Conclusion and Future Work
	Acknowledgments
	References
Smiling Earth - Raising Citizens’ Awareness on Environmental Sustainability
	Abstract
	1 Introduction
	2 DESENT Project
	3 Related Work
	4 Behaviour Change
	5 Design Process
	6 Description of Smiling Earth
		6.1 System Architecture and Data Sources
	7 Evaluation
		7.1 Evaluation of Behaviour Change
		7.2 Evaluation of Potential Acceptance
	8 Reflections
	9 Conclusion and Future Work
	Acknowledgements
	References
Knowledge and Human Development Authority in Dubai (KHDA) Open Data: What Do Researchers Want?
	Abstract
	1 Introduction
	2 Literature Review
	3 Research Methodology
		3.1 Proposed Methodology
		3.2 Researchers Requirements
		3.3 KHDA Dataset
		3.4 KHDA Data Processing and Analysis
	4 Results and Discussion
	5 Conclusion
	References
An Immersive Web Visualization Platform for a Big Data Context in Bosch’s Industry 4.0 Movement
	Abstract
	1 Introduction
	2 Conceptual Background
		2.1 Intelligent Event Broker (IEB)
		2.2 Data Visualization in Big Data and Its Relevance to the IEB
	3 Architecture of the Web Visualization Platform
		3.1 Broker Monitoring
		3.2 Data Analytics
		3.3 Data Exploration
		3.4 Immersive Analytics
	4 Demonstration Case at Bosch Car Multimedia Portugal
		4.1 Visual Query Viewer
		4.2 3D Data Explorer
		4.3 AR Data Explorer
		4.4 In Situ Explorer
	5 Conclusion and Future Work
	Acknowledgements
	References
A Data Modelling Method for Big Data Warehouses
	Abstract
	1 Introduction
	2 Related Work
		2.1 (Big) Data Warehousing and (Big) Data Modelling
		2.2 A Novel Approach to the Design and Implementation of BDWing Systems
	3 A Data Modelling Method for Big Data Warehousing
	4 Demonstration and Evaluation
		4.1 Method Demonstration
		4.2 Method Evaluation
	5 Conclusions
	Acknowledgements
	References
Block Chain Technology and Applications
Towards a Better Understanding of the Value of Blockchains in Supply Chain Management
	Abstract
	1 Introduction
	2 Related Work
		2.1 Issues in the Current Supply Chain Information Flow
		2.2 Blockchains
		2.3 Blockchain Application in SCM
	3 Research Method
	4 Results
		4.1 Problem Formulation
		4.2 Artifact Development
	5 Discussion
		5.1 Reflection and Learning
		5.2 Formalizing the Learning
	6 Conclusion
	References
Users’ Knowledge and Motivation on Using Cryptocurrency
	Abstract
	1 Introduction
	2 Literature Review
	3 Theoretical Background
	4 Methodology
	5 Analysis of Findings
	6 Discussion
	7 Conclusion
	References
Cryptocurrency Usage Impact on Perceived Benefits and Users’ Behaviour
	Abstract
	1 Introduction
	2 Related Work
	3 Theoretical Background
	4 Research Questions and Hypothesis
	5 Research Methodology
	6 Questionnaire Design
	7 Data Analysis
		7.1 Personal Background
		7.2 Perceived Benefit
		7.3 Perceived Ease of Use
		7.4 Usage Behaviour
		7.5 Correlation Analysis
	8 Findings
		8.1 H1: There Is a Significant Relationship Between the Perceived Ease of Use and Users’ Behaviour in Cryptocurrency Transactions
		8.2 H2: There Is a Significant Relationship Between the Perceived Ease of Use and Perceived Benefits of Cryptocurrency
		8.3 H3: There Is a Significant Relationship Between the Perceived Benefit in Cryptocurrency and Usage Behaviour
	9 Discussion
	10 Conclusion
	References
Cloud Computing
Test Recommendation for Service Validation in 5G Networks
	Abstract
	1 Introduction
	2 State of the Art
		2.1 Software Defined Networks
		2.2 Network Service Validation
		2.3 Recommendation Systems
		2.4 Related Work
	3 Architecture Overview
		3.1 Software Development Kit (SDK)
		3.2 Validation and Verification Framework
		3.3 Service Platform (SP)
		3.4 Catalogue
		3.5 Positioning of the DSM in the V&V Framework
	4 Proposed Decision Support Mechanism
		4.1 Overview
		4.2 Collaborative Filtering
		4.3 Singular Value Decomposition
		4.4 Continuous Optimization
	5 Conclusions
	Acknowledgements
	References
Modelling 5G Cloud-Native Applications by Exploiting the Service Mesh Paradigm
	Abstract
	1 Introduction
	2 Related Work
	3 Proposed Approach
		3.1 The Service Mesh Approach
		3.2 Proposed 5G-Ready Application Metamodel
	4 Use Case
	5 Conclusions
	Acknowledgement
	References
Digital Services and Social Media
Towards an Integrated Theoretical Model for Assessing Mobile Banking Acceptance Among Consumers in Low Income African Economies
	Abstract
	1 Introduction
	2 Background Study
		2.1 Mobile Banking in Developing Economies in Africa
		2.2 Related Work
		2.3 Theoretical Development
	3 Research Approach
		3.1 Instrument
		3.2 Data Collection
		3.3 Data Assessment Methods
	4 Results
		4.1 Data
		4.2 Reliability of the Measurement Model
		4.3 Hypothesis Testing
	5 Discussion
	6 Limitations and Future Research Directions
	7 Conclusion
	References
Smart City Adoption: An Interplay of Constructive and Adverse Factors
	Abstract
	1 Introduction
	2 Literature Review
		2.1 Digital Transformation
		2.2 Smart Cities
		2.3 Research Hypothesis and Model Conceptualization
	3 Research Methodology
		3.1 Research Instrument
		3.2 Data Collection and Research Methods
	4 Results
		4.1 Descriptive Statistics and Scale Reliability
		4.2 Confirmatory Analysis
		4.3 Model Assessment and Hypotheses Confirmation
	5 Discussion
	6 Conclusion
	Acknowledgements
	A Appendix
	References
Supervised Machine Learning Approach for Subjectivity/Objectivity Classification of Social Data
	Abstract
	1 Introduction
	2 Related Works
	3 Proposed Approach for Finding Subjective Sentence
		3.1 Data Collection
		3.2 Text Preprocessing
		3.3 Features Extraction
		3.4 Training and Prediction
	4 Experimentation
	5 Results and Evaluation
		5.1 Results
		5.2 Evaluation
	6 Conclusion
	Acknowledgment
	References
e-Government
Smart Cities and Citizen Orientation: The Growing Importance of “Smart People” in Developing Modern Cities
	Abstract
	1 Introduction
	2 Citizens Orientation in the Smart City Research
	3 Smart Cities Rankings
	4 Sample Selection
	5 Methodological Approach
	6 Results
		6.1 General Strategies
		6.2 Smart City Strategies
	7 Conclusions
	References
Digital Transformation in the Public Sector: Identifying Critical Success Factors
	Abstract
	1 Introduction
	2 Literature Review
		2.1 Managing Digital Transformation
		2.2 Organisational and Managerial Factors
		2.3 Information Technology Factors
		2.4 Environmental Factors
	3 Research Methodology
	4 Results and Discussions
		4.1 The Case Organisation
		4.2 Organisational and Managerial Factors
		4.3 Information Technology Factors
		4.4 Environmental Factors
	5 Conclusion
	References
Employing the Once-Only Principle in the Domain of the Electronic Public Procurement
	Abstract
	1 Introduction
	2 Background and Motivation for the Study
		2.1 Digital Single Market Strategy and Once Only Principle
		2.2 Once Only Initiatives and Implementations
		2.3 eProcurement and the European Single Procurement Document (ESPD)
	3 Methodology
		3.1 The Generic Federated OOP Architecture
		3.2 ESPD Service as TOOP Data Consumer
			3.2.1 Use Case Description
			3.2.2 Advantages Integrating TOOP with an ESPD Service
			3.2.3 The Greek ESPD Service as TOOP Data Consumer
	4 Results
	5 Conclusions and Future Work
	Acknowledgments
	References
Embracing Modern Technologies and Urban Development Trends: Initial Evaluation of a Smart City Enterprise Architecture Frameworks
	Abstract
	1 Introduction
	2 Research Methods
	3 Background
		3.1 SOA, Service Management, Interoperability, and Provision of Services
		3.2 Big Data, Cloud/Edge/Fog Computing, and Data Management
		3.3 IoT, City Sensing, and Context Awareness
	4 Comparing the +CityxChange EAF and TOGAF
	5 A Sample Scenario
		5.1 Case Description
		5.2 Identifying Concepts
		5.3 Modeling Implementations
	6 Related Work
	7 Conclusions
	Acknowledgements
	References
Enterprise Systems
Process Chunks Selection in the Context of Loose Inter-Organizations Cooperation in Cloud Computing
	Abstract
	1 Introduction
	2 Background and Related Work
	3 Case Study: Drug Development Process
	4 An Ontology-Based Method for PC Selection
		4.1 Context Ontology
		4.2 Capacity Ontology
		4.3 Principles of Contexts/Capacities Matching
		4.4 Selection of PCs
			4.4.1 MAC-Selection
			4.4.2 MIC-Selection
	5 Conclusion
	References
Agile Software Engineering Practices in ERP Implementation
	Abstract
	1 Introduction
	2 ERP Implementation Methodologies in Literature
	3 SAP Activate Methodology (Agile Based Methodology)
	4 Report from the Industry
	5 Conclusion
	References
Exploring Machine Learning Models to Predict Harmonized System Code
	Abstract
	1 Introduction
	2 Related Work
	3 Research Methodology and Experiments
		3.1 Business Understanding
		3.2 Data Understanding
		3.3 Data Analysis
		3.4 Data Cleansing
		3.5 Sample Processing
		3.6 Tokenization
		3.7 Experiments
			3.7.1 Performance Measures
			3.7.2 HS Code Prediction Models
	4 Discussion
	5 Conclusion
	References
Adopting Industry 4.0 Technologies in Citizens’ Electronic-Engagement Considering Sustainability Development
	Abstract
	1 Introduction
	2 Industrial Revolution
	3 Key Industrial 4.0 Technologies
		3.1 Cyber-Physical System
		3.2 Internet of Things
		3.3 Big Data
		3.4 Robots
		3.5 Additive Manufacturing
		3.6 Cloud Computing
		3.7 Augmented Reality
	4 I4.0 and Sustainability
	5 I4.0 and Circular Economy Impact
	6 I4.0 Issues and Challenges
	7 I4.0 and Government Impact
	8 Society 5.0
	9 I4.0 and Citizens’ Impact
	10 Research Gap
	11 Conclusions
	References
HealthCare Information Systems
The Case for mHealth Standardization for Electronic Health Records in the German Healthcare System
	Abstract
	1 Introduction
	2 Methodology
	3 Background and Related Work
		3.1 Technical Environment
		3.2 Related Work
		3.3 Exploratory Work for German FHIR Resources
	4 Prototype Implementation
		4.1 Application System Architecture
		4.2 Vaccination and Blood Sugar Scenarios
		4.3 Application Views
	5 Evaluation
		5.1 Population Prevalence and Implementation Proposal
	6 Conclusion
	References
Assessing Digital Support for Smoking Cessation
	Abstract
	1 Introduction
	2 Smoking Cessation – What Works
	3 Smoking Cessation Apps – What Research Says
	4 App Landscape – What Currently Exists
		4.1 Adherence to Evidence-Based Practices
		4.2 Source Credibility as Routine Use Influencer
		4.3 User Engaging Motivational Affordance
	5 Results
	6 Discussion
	7 Conclusion
	References
The Role of Gender in Supporting Active and Healthy Ageing by ICT Solutions: Learning from Latvian, Polish and Swedish Older Adults
	Abstract
	1 Introduction
	2 Background
	3 Method
	4 Results
	5 Discussion
		5.1 RQ1: Do Women and Men in Latvia, Poland and Sweden Differ in the Perception of Factors that Are Important to Have an Independent and Satisfying Life as People Age?
		5.2 RQ2: Do Women and Men in Latvia, Poland and Sweden Differ in the Perception of Technological Solutions that Should Be Developed to Support Independent and Healthy Ageing?
		5.3 Implications
	6 Conclusions
	Acknowledgments
	References
Information Systems Security and Information Privacy Protection
Trust Management Model Based on Mutual Evaluation Method for the Social Internet of Things
	Abstract
	1 Introduction
	2 Background and Related Work
		2.1 Trust in the SIoT Systems
		2.2 Literature Review
	3 Proposed Trust Management for SIoT
		3.1 Direct Evaluation
		3.2 Post-evaluation
	4 Experimental Simulation
		4.1 Environment Setup
		4.2 Experimental Results
	5 Conclusion
	Acknowledgement
	References
A Model for Describing and Maximising Security Knowledge Sharing to Enhance Security Awareness
	Abstract
	1 Introduction
	2 Literature Review
	3 Research Methodology
		3.1 Study 1 (Semi-structured Interview)
		3.2 Study 2 (Quantitative Approach Survey)
		3.3 Findings
	4 Security Knowledge Sharing Model
		4.1 Encouraging & Facilitating SKS
		4.2 Modeling SKS Description, Facilitation and Encouragement Model
	5 General Discussion
		5.1 Future Work
	6 Conclusion
	References
A Formal Environment for Credibility and Accuracy Assessment of Safety Messages Exchanged in VANETs
	Abstract
	1 Introduction
	2 Formal Specification and Validation
		2.1 Formal Specification
		2.2 Soundness and Completeness Validation
	3 Conclusion
	References
A Security Mechanism Against the RSU Compromise Attack in a Ticket-Based Authentication Scheme for VANETs
	Abstract
	1 Introduction
	2 Related Work
	3 TASVPP and OTASV
	4 RSU Compromise Attack’s Impact
	5 Background
		5.1 Security Requirements
		5.2 Scheme Assumptions
	6 The Proposed Scheme
		6.1 RSU’s Identity/Corresponding Private Key Pair Updating Strategy
		6.2 Authentication Phase
		6.3 Signature Generation and Verification Phase
		6.4 Traceability Phase
		6.5 RSU Revocation and Recovering Phase
	7 Security Analysis
		7.1 The Prevention of the RSU Compromise Attack
		7.2 The Detection of the RSU Compromise Attack
		7.3 The Revocation and Recovering of the Detected Compromised RSUs
		7.4 The Eviction of the Revoked RSUs
	8 Conclusion
	References
Innovative Research Projects
Monitoring the Gait Process During the Rehabilitation of Patients Using Computer Vision Techniques and UWB Technology
	Abstract
	1 Introduction
	2 Method
		2.1 Angular Ranges
		2.2 Movement Ranges in the Hip Joint
	3 Hardware and Software Description
		3.1 Marking Module
		3.2 Multilateration Algorithm
		3.3 Vision System
			3.3.1 Algorithm of Video Processing
		3.4 System Integration
		3.5 Application for Data Visualization and Analysis
			3.5.1 User Interface
	4 System Parameters Validation
		4.1 Evaluation of the Measuring Range of the Monitoring System
			4.1.1 Measurement Results Based on the UWB
			4.1.2 Measurement Results Based on a Vision System
	5 Conclusion
	Acknowledgments
	References
Innovation and Competitiveness of Universities – An Empirical Research
	Abstract
	1 Introduction
	2 Theoretical Background
		2.1 Educational Innovations
		2.2 Innovation Global Index
		2.3 Competitiveness of Universities
	3 Methodology
	4 Results and Discussion
	5 Conclusion
	Acknowledgements
	References
Application of Automated Trust Verification and Delegation Mechanisms in PEPPOL eProcurement Network
	Abstract
	1 Introduction
	2 Related Work
	3 Methodology
		3.1 The OpenPEPPOL Network
		3.2 The LIGHTest Tools
		3.3 LIGHTest Within PEPPOL
	4 Results
		4.1 Access Point Verification
		4.2 Trust Establishment in a PEPPOL Tender
	5 Discussion and Conclusions
	Acknowledgments
	References
A Smart Distributed Marketplace
	Abstract
	1 Introduction
	2 Literature Review
	3 Preliminaries
		3.1 Blockchain
		3.2 5G Networks
	4 Proposed Architecture
		4.1 dPortal
		4.2 Smart NFV Marketplace
		4.3 Blockchain Validation System
	5 Conclusions
	Acknowledgements
	References
IT Governance
Organisational Structure’s Influence on IT Alignment: The Case of a Public Organisation
	Abstract
	1 Introduction
	2 Literature Review
		2.1 IT Alignment
		2.2 Organisational Structure
		2.3 Organisational Structure and IT Alignment
		2.4 Research Conceptual Framework
	3 Research Methodology
	4 Results and Discussions
		4.1 The Case Organisation
		4.2 IT Alignment Maturity
		4.3 Formal Organisational Structure
		4.4 Informal Organisational Structure
	5 Conclusion
	References
Factors for Successful IT Outsourcing Relationships in Large Companies in Sweden: A Service Buyer’s Perspective
	Abstract
	1 Introduction
	2 Research Background
		2.1 Incomplete Contract Theory (ICT)
		2.2 Transaction Cost Theory (TCT)
		2.3 IT Outsourcing Relationships
	3 Research Methodology
	4 Results and Analyses
		4.1 Relationship Management in Large Companies in Sweden
		4.2 Relationship Factors that Contribute to ITO Success in Large Companies in Sweden
	5 Conclusion
	References
Barriers in Business-IT Alignment in the Banking Sector in a Developing Country: A Case Study of Commercial Banks in the Gambia
	Abstract
	1 Introduction
	2 Research Background
		2.1 Importance of Business-IT Alignment in Organizations
		2.2 Barriers in Business-IT Alignment
	3 Research Methodology
	4 Results and Discussion
	5 Conclusion
	Acknowledgements
	References
The Impact of Knowledge Sharing and Innovation Performance on the Organization – Moderating by Innovation Awards
	Abstract
	1 Introduction
	2 Literature Review and Hypothesis Development
		2.1 The Relationship Between Knowledge Sharing, Innovation Performance, and Innovation Awards
		2.2 The Relationship Between Innovation Performance and Company Achievement (Performance, Value and Growth)
	3 Research Methodology
		3.1 Sample and Data Collection
		3.2 Research Constructs
	4 Analysis and Findings
		4.1 Descriptive Statistics
		4.2 Regression Analysis
	5 Discussion
	6 Conclusion
	References
The Impact of Cognitive Process Types on the Success of Exploratory Projects
	Abstract
	1 Introduction
	2 Literature Review
	3 Research Methodology
		3.1 Design Theory
		3.2 The Polaris Project Case
		3.3 The Manhattan Project Case
	4 Results
	5 Analysis
	6 Conclusion
	References
Management and Organizational Issues in Information Systems
Facilitating ICT Adoption for Older Workers: Lessons Learned from Enterprise System Practitioners
	Abstract
	1 Introduction
	2 Background
	3 Method
	4 Data Analysis and Results
		4.1 Category “Project Preparation”
		4.2 Category “Training”
		4.3 Category “Implementation Process”
		4.4 Category “System”
		4.5 Improvement Recommendations by Age
	5 Discussion of Findings
		5.1 Strengths and Weaknesses of Older Workers
		5.2 Implications
		5.3 Limitations and Future Research
	6 Conclusion
	Acknowledgments
	References
Adoption of Digital Technology in Corporate R&D Context
	Abstract
	1 Research Context
	2 Theoretical Background
	3 Research Methodology
	4 Research Findings
		4.1 Key Factors Influencing Digital Technology Adoption of Corporate R&D
		4.2 New Technology Acceptance Model for Corporate R&D Digitalization
	5 Proposing a Technology Adoption Theory Within the Context of Digitizing Research and Development Activities
	6 Summary and Conclusion
	Appendix 1: Managerial Questions
	Appendix 2: Questions for MIF R&D Scientists
	Appendix 3: Reclassification of Codes
	References
ERP Implementation: Requirements Engineering for ERP Product Customization
	Abstract
	1 Introduction
	2 Requirements Engineering and ERP Software
	3 Activates in Requirements Engineering Process
	4 Fit Gap Analysis
	5 Challenges for Requirements Engineering in the Context of Customizable Software (ERP) Products
	6 Artifect Proposal - Framework for Requirements Engineering in the Context of ERP Systems
	7 Tool Functionality
	8 Interviews with ERP Experts from Two Consulting Companies
	9 Discussion on Interviews with Expert from Company A and Company B
	10 Limitations and Future Work
	11 Conclusion and Future Work
	References
Conceptualizing IT Project Portfolio Management in Terms of Organisational State-Transition Approach
	Abstract
	1 Background
	2 The OSTA
	3 Research Design
	4 Conceptualizing IT PPM in Terms of the OSTA
		4.1 State Indicators
		4.2 Desired State
		4.3 Transitions
		4.4 Summary
	5 Inconsistencies Between Transition Actions and Desired State
	6 Conclusion
		6.1 Reflection on the OSTA
		6.2 New Approach
		6.3 Strength of the Research
		6.4 Limitations of the Research
		6.5 Future Work
	Acknowledgements
	References
The Effect of Big Data Analytics Capability on Firm Performance: A Pilot Study in China
	Abstract
	1 Introduction
	2 Relevant Literature
	3 Relationships Between BDAC and FPER
	4 Research Design
		4.1 Method
		4.2 Sample
	5 Analysis and Results
		5.1 Measurement Model
		5.2 Structural Model
	6 Conclusions
		6.1 Summary and Expected Future Contribution
		6.2 Limitations and Work to Be Completed
	A Appendix
	References
Digital Services for Industry 4.0: Assessing Collaborative Technology Readiness
	Abstract
	1 Introduction
	2 Collaborative Technologies Overview
	3 Taxonomy Development Methodology: Collaborative Technologies for Industry 4.0
	4 The Industry 4.0 Collaborative Technologies Taxonomy
	5 Validation of Collaborative Technology Taxonomy
	6 Assessing Collaborative Technologies: Representative Example
	7 Conclusions
	Acknowledgements
	References
An Online Platform for ‘Black Swan’ Event Management in the Hospitality Industry
	Abstract
	1 Introduction and Research Background
	2 Methodological Procedure for Requirements Analysis
		2.1 Instruments and Procedures
		2.2 Case Selection - Eyjafjallajökull Volcano Eruption
			2.2.1 Implications of the Event
			2.2.2 Addressing the Event
			2.2.3 Impact Group
			2.2.4 First Line of Communication
			2.2.5 Extending Customer Service
			2.2.6 Negotiations with Hotels
			2.2.7 Contacting Hotel Tenants
		2.3 Organizational Structures of the Company After the Event
	3 Online Platform for Black Swan Event Management
		3.1 Back-End Implementation Based on Requirements
			3.1.1 Hiding the Room Search Mechanism
			3.1.2 Implementation of Alert Messages
			3.1.3 Update Messages from Relevant Parties
			3.1.4 Mass Customer Message Updates
		3.2 Front-End Design of the Online Application
			3.2.1 Bookings Management
	4 Conclusion
	References
Author Index