An Exact Branch-and-Price Algorithm for Scheduling Rescue Units during Disaster Response
G. Rauchecker, G. Schryen, European Journal of Operational Research 272 (2019) 352–363.

Using High Performance Computing for Unrelated Parallel Machine Scheduling with Sequence-Dependent Setup Times: Development and Computational Evaluation of a Parallel Branch-and-Price Algorithm
G. Rauchecker, G. Schryen, Computers &; Operations Research (2019) 338–357.

Walking the Middle Path: How Medium Trade-off Exposure Leads to Higher Consumer Satisfaction in Recommender Agents
V. Schuhbeck, N. Siegfried, V. Dorner, A. Benlian, M. Scholz, G. Schryen, in: Proceedings of the 14. Internationale Tagung Wirtschaftsinformatik, Siegen, Germany, 2019, pp. 55–64.

Exploiting Counterfactuals for Scalable Stochastic Optimization
S. Kuhlemann, M. Sellmann, K. Tierney, in: Lecture Notes in Computer Science, Cham, 2019.

High-Performance Business Computing – Parallel Algorithms and Implementations for Solving Problems in Operations Research and Data Analysis
G. Schryen, N. Kliewer, R. Borndörfer, T. Koch, OR News 65 (2019) 34–35.

Decision Support for the Optimal Coordination of Spontaneous Volunteers in Disaster Relief
G. Rauchecker, G. Schryen, in: Proceedings of the 15th International Conference on Information Systems for Crisis Response and Management, 2018.

Classifying the Ideational Impact of IS Review Articles: A Natural Language Processing Based Approach
J. Prester, G. Wagner, G. Schryen, in: Proceedings of the 2018 International Conference on Information Systems (ICIS 2018), San Francisco, CA, USA, 2018.

Security in Highly Connected IT Systems – Results of the Bavarian Research Alliance FORSEC
R. Schillinger, G. Schryen, Security in Highly Connected IT Systems – Results of the Bavarian Research Alliance FORSEC, University of Regensburg, 2018.

Information Security Investments: An Exploratory Multiple Case Study on Decision-Making, Evaluation and Learning
E. Weishäupl, E. Yasasin, G. Schryen, Computers &; Security 77 (2018) 807–823.

Information Systems Design Science Research and Cumulative Knowledge Development: An Exploratory Study
R. Schuster, G. Wagner, G. Schryen, in: Proceedings of the 2018 International Conference on Information Systems (ICIS 2018), San Francisco, CA, USA, 2018.

Heuristics and Simulation for Water Tank Optimization
C. Hallmann, S.C. Burmeister, M. Wissing, L. Suhl, in: Communications in Computer and Information Science, Cham, 2018.

Model Generator for Water Distribution Systems
C. Hallmann, S. Kuhlemann, in: Operations Research Proceedings, Cham, 2018.

Algorithms for Max-Min Share Fair Allocation of Indivisible Chores
H. Aziz, G. Rauchecker, G. Schryen, T. Walsh, in: Thirty-First AAAI Conference on Artificial Intelligence (AAAI-17), 2017, pp. 1–7.

Exploring the Scientific Impact of Information Systems Design Science Research: A Scientometric Study
G. Wagner, J. Prester, G. Schryen, in: 38th International Conference on Information Systems, 2017.

High-Performance Business Computing - Effizienzsteigerung durch Parallelisierung
G. Schryen, D. Hristova, Smart Data Radar (Deutsche Bank) (2017).

Literature Reviews in IS Research: What Can Be Learnt from the Past and Other Fields?
G. Schryen, A. Benlian, F. Rowe, G. Shirley, K. Larsen, S. Petter, G. Par\rquote e, G. Wagner, S. Haag, E. Yasasin, Communications of the AIS 40 (2017) 557–569.

A configuration-based recommender system for supporting e-commerce decisions
M. Scholz, V. Dorner, G. Schryen, A. Benlian, European Journal of Operational Research 259 (2017) 205–215.

Simulating Storage Policies for an Automated Grid-Based Warehouse System
M. Beckschäfer, S. Malberg, K. Tierney, C. Weskamp, in: Lecture Notes in Computer Science, Cham, 2017.

Projekt KUBAS: Koordination ungebundener Vor-Ort-Helfer
G. Rauchecker, G. Schryen, Im Einsatz 23 (2016) 44–46.

Factors Affecting the Scientific Impact of Literature Reviews: A Scientometric Study
G. Wagner, J. Prester, M. Roche, A. Benlian, G. Schryen, in: International Conference on Information Systems, 2016.

Development of two novel face-recognition CAPTCHAs: a security and usability study
G. Schryen, G. Wagner, A. Schlegel, Computers &; Security 60 (2016) 95–116.

High-Performance Computing for Scheduling Decision Support: A Parallel Depth-First Search Heuristic
G. Rauchecker, G. Schryen, in: Australasian Conference on Information Systems, 2015, pp. 1–13.

Revenue Management for Cloud Computing Providers: Decision Models for Service Admission Control under Non-probabilistic Uncertainty
T. Püschel, G. Schryen, D. Hristova, D. Neumann, European Journal of Operational Research 244 (2015) 637–647.

Requirements for IT Security Metrics - An Argumentation Theory Based Approach
E. Yasasin, G. Schryen, in: 23rd European Conference on Information Systems (ECIS 2015), 2015.

A Multi-Theoretical Literature Review on Information Security Investments using the Resource-Based View and the Organizational Learning Theory
E. Weishäupl, E. Yasasin, G. Schryen, in: International Conference on Information Systems, 2015.

IT Security Investments Through the Lens of the Resource-Based View: A new Theoretical Model and Literature Review
E. Weishäupl, E. Yasasin, G. Schryen, in: 23rd European Conference on Information Systems (ECIS 2015), 2015.

Towards an Economic Approach to Identity and Access Management Systems Using Decision Theory
E. Weishäupl, M. Kunz, E. Yasasin, G. Wagner, J. Prester, G. Schryen, G. Pernul, in: 2nd International Workshop on Security in Highly Connected IT Systems (SHCIS?15), 2015.

IT-Sicherheit: Ökonomisch Planen und Bewerten
G. Schryen, E. Weishäupl, Managementkompass (2015) 17–18.

Theory of Knowledge for Literature Reviews: An Epistemological Model, Taxonomy and Empirical Analysis of IS Literature
G. Schryen, G. Wagner, A. Benlian, in: International Conference on Information Systems (ICIS), 2015.

Resource Planning in Disaster Response - Decision Support Models and Methodologies
G. Schryen, G. Rauchecker, M. Comes, Business &; Information Systems Engineering (BISE) 57 (2015) 243–259.

Writing qualitative IS literature reviews ? Guidelines for synthesis, interpretation and guidance of research
G. Schryen, Communications of the AIS 37 (2015) 286–325.

A Decision Support System for IT Security Incident Management
G. Rauchecker, E. Yasasin, G. Schryen, in: 11th International Conference on Trust, Privacy, and Security in Digital Business (TRUSTBUS), 2014.

Model-based Decision Support in Manufacturing and Service Networks
A. Fink, N. Kliewer, D. Mattfeld, L. Mönch, F. Rothlauf, G. Schryen, L. Suhl, S. Voß, Business &; Information Systems Engineering (BISE) 6 (2014) 17–24.

Modellbasierte Entscheidungsunterstützung in Produktions- und Service-Netzwerken
A. Fink, N. Kliewer, D. Mattfeld, L. Mönch, F. Rothlauf, G. Schryen, L. Suhl, S. Voß, Wirtschaftsinformatik 56 (2014) 21–29.

The Epistemological Impact of Literature Reviews in Information Systems Research
G. Schryen, The Epistemological Impact of Literature Reviews in Information Systems Research, 2014.

A Fuzzy Security Investment Decision Support Model for Highly Distributed Systems
E. Yasasin, G. Rauchecker, J. Prester, G. Schryen, in: 1st Workshop on Security in Highly Connected IT Systems (SHCIS 14), 2014.

Emergency Response in Natural Disaster Management: Allocation and Scheduling of Rescue Units
F. Wex, G. Schryen, S. Feuerriegel, D. Neumann, European Journal of Operational Research (2014).

Risk Reduction in Natural Disaster Management Through Information Systems: A Literature review and an IS design science research agenda
G. Schryen, F. Wex, International Journal of Information Systems for Crisis Response and Management (IJISCRAM) 6 (2014).

Duality in fuzzy linear programming: A survey
G. Schryen, D. Hristova, OR -Spectrum 37 (2014) 1–48.

Writing qualitative IS literature reviews ? Guidelines for synthesis, interpretation and guidance of research
G. Schryen, Communications of the AIS (2014).

Sicherheitsherausforderungen in hochverteilten Systemen
H. de Meer, M. Diener, R. Herkenhöner, M. Kucera, M. Niedermeier, A. Reisser, G. Schryen, M. Vetter, T. Waas, E. Yasasin, PIK - Praxis Der Informationsverarbeitung Und Kommunikation 36 (2013) 153–159.

Effektiver Einsatz von Rettungskräften bei Naturkatastrophen - Modelle und Verfahren zur Entscheidungsunterstützung
F. Wex, G. Schryen, Blick in Die Wissenschaft (2013) 27–32.

Assignments of Collaborative Rescue Units during Emergency Response
F. Wex, G. Schryen, D. Neumann, International Journal of Information Systems for Crisis Response and Management 5 (2013) 63–80.

Decision Modeling for Assignments of Collaborative Rescue Units during Emergency Response
F. Wex, G. Schryen, D. Neumann, in: Proceedings of the 46th Hawaii International Conference on System Science, 2013.

Revisiting IS Business Value Research: What we already know, what we still need to know, and how we can get there
G. Schryen, European Journal of Information Systems (EJIS) 22 (2013) 139–169.

Cloud Service Revenue Management
T. Püschel, G. Schryen, D. Hristova, D. Neumann, in: European Conference on Information Systems, 2012.

Elicitating, modeling, and processing uncertain human preferences for software agents in electronic negotiations: An empirical study
F. Lang, G. Schryen, A. Fink, in: International Conference on Information Systems, 2012.

Energy-Aware Workload Management Models for Operating Cost Reduction in Data Centers
C. Bodenstein, G. Schryen, D. Neumann, European Journal of Operational Researchf: EJOR 222 (2012) 157–167.

A Fuzzy Decision Support Model for Natural Disaster Response under Informational Uncertainty
F. Wex, G. Schryen, D. Neumann, International Journal of Information Systems for Crisis Response and Management 4 (2012) 23–41.

Operational Emergency Response under Informational Uncertainty: A Fuzzy Optimization Model for Scheduling and Allocating Rescue Units
F. Wex, G. Schryen, D. Neumann, in: International Conference on Information Systems for Crisis Response and Management (ISCRAM) 2012, 2012.

IS Design Thinking in Disaster Management Research
G. Schryen, F. Wex, in: 45th Hawaii International Conference on System Sciences, 2012.

Profis im Netz: Soziale Netzwerke könnten in Unternehmen viel mehr Nutzen stiften - woran hakt es?, in: Die Zeit (12.04.2012)
G. Schryen, Die Zeit (2012).

Soziale Netzwerke in Unternehmenskontexten - Potentiale und Anforderungen, in: Information Management & Consulting, to appear
G. Schryen, IM Information Management &; Consulting (2012).

Automated Negotiations Under Uncertain Preferences
F. Lang, G. Schryen, A. Fink, in: Proceedings of the 2011 International Conference on Information Systems (ICIS 2011), 2011.

Reducing Datacenter Energy Usage through Efficient Job Allocation
C. Bodenstein, G. Schryen, D. Neumann, in: Proceedings of the 19th European Conference on Information Systems (ECIS 2011), 2011.

Intelligent Decision Support for Centralized Coordination during Emergency Response
F. Wex, G. Schryen, D. Neumann, in: Proceedings of the 8th International Conference on Information Systems for Crisis Response and Management (ISCRAM 2011), 2011.

A formal approach towards measuring trust in distributed systems
G. Schryen, M. Volkamer, S. Ries, in: Proceedings of the 26th Annual ACM Symposium on Applied Computing, 2011.

Is open source security a myth? What do vulnerability and patch data say?
G. Schryen, Communications of the ACM (CACM) Vol. 54 (2011) 130–139.

Seeking the VALUE in IS Business Value Research - An Agenda for investigating Synergies Between Socio-organizational Change, IS Capabilities Change, and IS Innovation
G. Schryen, in: IS Capabilities Change, and IS Innovation, Proceedings of the 19th European Conference on Information Systems (ECIS 2011), Helsinki, 2011.

Applying heuristic methods for job scheduling in storage markets
J. Finkbeiner, C. Bodenstein, G. Schryen, D. Neumann, in: 18th European Conference on Information Systems (ECIS 2010), 2010.

From "Take-it-or-leave-it" offers to "Take-it-or-be-left-out" Ultimatum - A trade mechanism for Online Services
C. Bodenstein, G. Schryen, D. Neumann, in: 18th European Conference on Information Systems (ECIS 2010), 2010.

Measuring eTrust in distributed systems - General Concept and Application to Internet Voting
M. Volkamer, G. Schryen, in: Proceedings of the 23rd Bled EConference, 2010.

Increasing software security through open source or closed source development? Empirics suggest that we have asked the wrong question
G. Schryen, R. Eliot, in: 43rd Annual Hawaii International Conference on System Sciences, 2010.

A decision-theoretic foundation of IS business value research
G. Schryen, C. Bodenstein, in: Proceedings of the 18th European Conference on Information Systems (ECIS 2010), 2010.

A Fuzzy Model for IT Security Investments
G. Schryen, in: F. C. Freiling (Ed.), Sicherheit 2010f: Sicherheit, Schutz Und Zuverl\'22assigkeitf; Konferenzband Der 5. Jahrestagung Des Fachbereichs Sicherheit Der Gesellschaft F\'22ur Informatik e.V. (GI), 5. - 7. Oktober 2010 in Berlin, Gesellschaft für Informatik, Bonn, 2010, pp. 289–304.

An Analysis of Literature Reviews on IS Business Value: How Deficiencies in Methodology and Theory Use Resulted in Limited Effectiveness
G. Schryen, in: Proceedings of the First Scandinavian Conference on Information Systems (SCIS), 2010.

Preserving knowledge on IS business value: what literature reviews have done
G. Schryen, Business \'26; Information Systems Engineering (BISE) 52 (2010) 225–237.

Ökonomischer Wert von Informationssystemen - Beitrag von Literatur-Reviews zum Wissenserhalt ( = Preserving Knowledge on IS Business Value. What Literature Reviews Have Done)
G. Schryen, Wirtschaftsinformatik 52 (2010) 225–237.

Elektronische Wahlen: Verifizierung vs. Zertifizierung
M. Volkamer, G. Schryen, L. Langer, A. Schmidt, J. Buchmann, in: Workshop Elektronische Wahlen, Elektronische Teilhabe, Societyware, 39th GI-Jahrestagung, 2009.

Security in Large-Scale Internet Elections: A Retrospective Analysis of Elections in Estonia, The Netherlands, and Switzerland
G. Schryen, E. Rich, IEEE Transactions on Information Forensics \'26; Security 4 (2009) 729–744.

Open Source vs. Closed Source Software: Towards Measuring Security
G. Schryen, R. Kadura, in: 24th Annual ACM Symposium on Applied Computing, 2009.

A comprehensive and comparative analysis of the patching behavior of open source and closed source software vendors
G. Schryen, in: 5th International Conference on IT Security Incident Management \'26; IT Forensics, 2009.

Security of open source and closed source software: An empirical comparison of published vulnerabilities
G. Schryen, in: 15th Americas Conference on Information Systems, 2009.

Effektivität und Effizienz von Anti-Spam-Maßnahmen
G. Schryen, Linux Technical Review (2008).

Practical Security of Large-scale Elections: An Exploratory Case Study of Internet Voting in Estonia
G. Schryen, in: 7th Workshop on E-Business (WEB 2008, AIS Special Interest Group on E-Business), 2008.

Preventing E-mail Spam: The Conceptualization and the Analysis of an Infrastructure Framework
G. Schryen, Preventing E-Mail Spam: The Conceptualization and the Analysis of an Infrastructure Framework, 2007.

A Scalable and Flexible Infrastructure Framework For Addressing Spam
G. Schryen, in: D. Satesh, R. Prabhakar (Eds.), Proceedings of IPSI International Conference on Advances in the Internet, Processing, Systems, and Interdisciplinary Research, ICFAI University Press, Hyderabad, India, 2007, pp. 55–64.

Anti-Spam Measures: Analysis and Design
G. Schryen, Anti-Spam Measures: Analysis and Design, Springer, Berlin, Heidelberg, New York, 2007.

Anti-spam legislation: An analysis of laws and their effectiveness
G. Schryen, Information and Communications Technology Law 16 (2007) 17–32.

Approaches Addressing Spam
G. Schryen, in: D. Satesh, R. Prabhakar (Eds.), Spam: An Introduction, ICFAI University Press, Hyderabad, India, 2007, pp. 41–57.

Armed for the spam battle - a technological and organizational infrastructure framework
G. Schryen, in: 40th Annual Hawaii International Conference on System Sciences, 2007.

Do anti-spam measures effectively cover the e-mail communication network? A formal approach
G. Schryen, The Journal of Information Systems Security (AIS Special Interest Group in Security) 3 (2007) 66–90.

Location Based Services
G. Schryen, in: H. Schulte (Ed.), Vom LAN Zum Kommunikationsnetz - Systeme Und Applikationen, Interest-Verlag, Kissing, 2007.

Spam-Emails
G. Schryen, in: H. Schulte (Ed.), Vom LAN Zum Kommunikationsnetz - Systeme Und Applikationen, Edition 02/2007, Interest-Verlag, Kissing, 2007.

The Impact that Placing Email Addresses on the Internet has on the Receipt of Spam ? An Empirical Analysis
G. Schryen, Computers &; Security 2 (2007) 361–372.

A formal approach towards assessing the effectiveness of anti-spam procedures
G. Schryen, in: 39th Annual Hawaii International Conference on System Sciences, 2006.

A honeypot for the exploration of spammers' behaviour
G. Schryen, IATAC IAnewsletter 8 (2005) 22–25.

An e-mail honeypot addressing spammers' behavior in collecting and applying addresses
G. Schryen, in: Proceedings of the 6th IEEE Information Assurance Workshop, Westpoint, 2005, pp. 37–41.

Security Aspects of Internet Voting
G. Schryen, in: 37th Annual Hawaii International Conference on System Sciences, 2004.

Effektivität von Lösungsansätzen zur Bekämpfung von Spam
G. Schryen, Wirtschaftsinformatik 46 (2004) 281–288.

Fighting Spam: Motivating an Account-based Approach
G. Schryen, in: P. Isaias (Ed.), Proceedings of the IADIS International Conference WWW/Internet 2004. Vol. 2, IADIS Press, Madrid, 2004, pp. 937–940.

How Security Problems Can Compromise Remote Internet Voting Systems
G. Schryen, in: Workshop of the ESF TED Programme, 2004, pp. 121–131.

Neulich am Hotspot - Bringt Mobiles Internet die Menschen ins Netz?
G. Schryen, in: G. Gehrke (Ed.), Digitale Teilung - Digitale Integrationf: Perspektiven Der Internetnutzung, KOPAED-Verlag, München, 2004, pp. 45–51.

Online Marktforschung im Mittelstand: Analyse von Konsumentenverhalten in 3D-Internet-Welten
G. Schryen, J. Herstell, M. Schoenen, Online Marktforschung Im Mittelstand: Analyse von Konsumentenverhalten in 3D-Internet-Welten, Deutscher Universitäts-Verlag, Wiesbaden, 2003.

Online-Marktforschung - Analyse von Konsumentenverhalten in virtuellen Umgebungen, in: Information Management & Consulting, 18,2
G. Schryen, J. Herstell, IMf: Die Zeitschrift Für Information Management Und Consulting 18 (2003) 74–77.

E-Democracy: Internet Voting
G. Schryen, in: Proceedings of the IADIS International Conference WWW Internet 2003. Vol. 2, IADIS Press, Algarve, 2003, pp. 1017–1021.

Internet-Wahlen
G. Schryen, in: 6. Internationale Tagung Wirtschaftsinformatik, 2003, pp. 937–956.

Data Warehouse in der Marktforschung - Analyse von Benutzeraktivitäten in virtuellen Welten
G. Schryen, M. Schoenen, in: Data Warehousing 2002, 2002, pp. 103–119.

Elektronisches Papier - Display-Technologie mit weitem Anwendungsspektrum
G. Schryen, J. Karla, Wirtschaftsinformatik 44 (2002) 567–574.

Elektronische Zeitung - das Erbe Gutenbergs?
G. Schryen, I-Com. Zeitschrift Für Interaktive Und Kooperative Medien (2002) 36–37.