G. Schryen, G. Wagner, and A. Schlegel, “Development of two novel face-recognition CAPTCHAs: a security and usability study,” Computers &; Security, vol. 60, no. July, pp. 95–116, 2016.

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

T. Püschel, G. Schryen, D. Hristova, and D. Neumann, “Revenue Management for Cloud Computing Providers: Decision Models for Service Admission Control under Non-probabilistic Uncertainty,” European Journal of Operational Research, vol. 244, no. 2, pp. 637–647, 2015.

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

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

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

E. Weishäupl et al., “Towards an Economic Approach to Identity and Access Management Systems Using Decision Theory,” in 2nd International Workshop on Security in highly connected IT Systems (SHCIS?15), 2015.

G. Schryen and E. Weishäupl, “IT-Sicherheit: Ökonomisch Planen und Bewerten,” Managementkompass, no. 2, pp. 17–18, 2015.

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

G. Schryen, G. Rauchecker, and M. Comes, “Resource Planning in Disaster Response - Decision Support Models and Methodologies,” Business &; Information Systems Engineering (BISE), vol. 57, no. 4, pp. 243–259, 2015.

G. Schryen, “Writing qualitative IS literature reviewsf? Guidelines for synthesis, interpretation and guidance of research,” Communications of the AIS, vol. 37, no. Art 12, pp. 286–325, 2015.

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

A. Fink et al., “Model-based Decision Support in Manufacturing and Service Networks,” Business &; Information Systems Engineering (BISE), vol. 6, no. 1, pp. 17–24, 2014.

A. Fink et al., “Modellbasierte Entscheidungsunterstützung in Produktions- und Service-Netzwerken,” Wirtschaftsinformatik, vol. 56, no. 1, pp. 21–29, 2014.

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

E. Yasasin, G. Rauchecker, J. Prester, and G. Schryen, “A Fuzzy Security Investment Decision Support Model for Highly Distributed Systems,” in 1st Workshop on Security in highly connected IT systems (SHCIS 14), 2014.

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

G. Schryen and F. Wex, “Risk Reduction in Natural Disaster Management Through Information Systems: A Literature review and an IS design science research agenda,” International Journal of Information Systems for Crisis Response and Management (IJISCRAM), vol. 6, no. 1, 2014.

G. Schryen and D. Hristova, “Duality in fuzzy linear programming: A survey,” OR -Spectrum, vol. 37, no. 1, pp. 1–48, 2014.

G. Schryen, “Writing qualitative IS literature reviewsf? Guidelines for synthesis, interpretation and guidance of research,” Communications of the AIS, 2014.