C. Bodenstein, G. Schryen, and D. Neumann, “From ‘Take-it-or-leave-it’ offers to ‘Take-it-or-be-left-out’ Ultimatum - A trade mechanism for Online Services,” in 18th European Conference on Information Systems (ECIS 2010), 2010.
LibreCat: /record/5690

M. Volkamer and G. Schryen, “Measuring eTrust in distributed systems - General Concept and Application to Internet Voting,” in Proceedings of the 23rd Bled eConference, 2010.
LibreCat: /record/5598

G. Schryen and R. Eliot, “Increasing software security through open source or closed source development? Empirics suggest that we have asked the wrong question,” in 43rd Annual Hawaii International Conference on System Sciences, 2010.
LibreCat: /record/5631

G. Schryen and C. Bodenstein, “A decision-theoretic foundation of IS business value research,” in Proceedings of the 18th European Conference on Information Systems (ECIS 2010), 2010.
LibreCat: /record/5632

G. Schryen, “A Fuzzy Model for IT Security Investments,” in 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, 2010, vol. 170, pp. 289–304.
LibreCat: /record/5642

G. Schryen, “An Analysis of Literature Reviews on IS Business Value: How Deficiencies in Methodology and Theory Use Resulted in Limited Effectiveness,” in Proceedings of the First Scandinavian Conference on Information Systems (SCIS), 2010.
LibreCat: /record/5643

G. Schryen, “Preserving knowledge on IS business value: what literature reviews have done,” Business \'26; Information Systems Engineering (BISE), vol. 52, no. 4, pp. 225–237, 2010.
LibreCat: /record/5644

G. Schryen, “Ökonomischer Wert von Informationssystemen - Beitrag von Literatur-Reviews zum Wissenserhalt ( = Preserving Knowledge on IS Business Value. What Literature Reviews Have Done),” Wirtschaftsinformatik, vol. 52, no. 4, pp. 225–237, 2010.
LibreCat: /record/5645

M. Volkamer, G. Schryen, L. Langer, A. Schmidt, and J. Buchmann, “Elektronische Wahlen: Verifizierung vs. Zertifizierung,” in Workshop Elektronische Wahlen, elektronische Teilhabe, Societyware, 39th GI-Jahrestagung, 2009.
LibreCat: /record/5597

G. Schryen and E. Rich, “Security in Large-Scale Internet Elections: A Retrospective Analysis of Elections in Estonia, The Netherlands, and Switzerland,” IEEE Transactions on Information Forensics \'26; Security, vol. 4, no. 4 Part, pp. 729–744, 2009.
LibreCat: /record/5621

G. Schryen and R. Kadura, “Open Source vs. Closed Source Software: Towards Measuring Security,” in 24th Annual ACM Symposium on Applied Computing, 2009.
LibreCat: /record/5625

G. Schryen, “A comprehensive and comparative analysis of the patching behavior of open source and closed source software vendors,” in 5th International Conference on IT Security Incident Management \'26; IT Forensics, 2009.
LibreCat: /record/5646

G. Schryen, “Security of open source and closed source software: An empirical comparison of published vulnerabilities,” in 15th Americas Conference on Information Systems, 2009.
LibreCat: /record/5647

G. Schryen, “Effektivität und Effizienz von Anti-Spam-Maßnahmen,” Linux Technical Review, no. 7, 2008.
LibreCat: /record/5648

G. Schryen, “Practical Security of Large-scale Elections: An Exploratory Case Study of Internet Voting in Estonia,” in 7th Workshop on e-Business (WEB 2008, AIS Special Interest Group on E-Business), 2008.
LibreCat: /record/5649

G. Schryen, Preventing E-mail Spam: The Conceptualization and the Analysis of an Infrastructure Framework. 2007.
LibreCat: /record/6287

G. Schryen, “A Scalable and Flexible Infrastructure Framework For Addressing Spam,” in Proceedings of IPSI International Conference on Advances in the Internet, Processing, Systems, and Interdisciplinary Research, D. Satesh and R. Prabhakar, Eds. Hyderabad, India: ICFAI University Press, 2007, pp. 55–64.
LibreCat: /record/5650

G. Schryen, Anti-Spam Measures: Analysis and Design. Berlin, Heidelberg, New York: Springer, 2007.
LibreCat: /record/5651

G. Schryen, “Anti-spam legislation: An analysis of laws and their effectiveness,” Information and Communications Technology Law, vol. 16, no. 1, pp. 17–32, 2007.
LibreCat: /record/5652

G. Schryen, “Approaches Addressing Spam,” in Spam: An Introduction, D. Satesh and R. Prabhakar, Eds. Hyderabad, India: ICFAI University Press, 2007, pp. 41–57.
LibreCat: /record/5653

G. Schryen, “Armed for the spam battle - a technological and organizational infrastructure framework,” in 40th Annual Hawaii International Conference on System Sciences, 2007.
LibreCat: /record/5654

G. Schryen, “Do anti-spam measures effectively cover the e-mail communication network? A formal approach,” The Journal of Information Systems Security (AIS Special Interest Group in Security), vol. 3, no. 2, pp. 66–90, 2007.
LibreCat: /record/5655

G. Schryen, “Location Based Services,” in Vom LAN zum Kommunikationsnetz - Systeme und Applikationen, H. Schulte, Ed. Kissing: Interest-Verlag, 2007.
LibreCat: /record/5656

G. Schryen, “Spam-Emails,” in Vom LAN zum Kommunikationsnetz - Systeme und Applikationen, Edition 02/2007, vol. 9/12, H. Schulte, Ed. Kissing: Interest-Verlag, 2007.
LibreCat: /record/5657

G. Schryen, “The Impact that Placing Email Addresses on the Internet has on the Receipt of Spamf? An Empirical Analysis,” Computers &; Security, vol. 2, no. 5, pp. 361–372, 2007.
LibreCat: /record/5658

G. Schryen, “A formal approach towards assessing the effectiveness of anti-spam procedures,” in 39th Annual Hawaii International Conference on System Sciences, 2006.
LibreCat: /record/5659

G. Schryen, “A honeypot for the exploration of spammers’ behaviour,” IATAC IAnewsletter, vol. 8, no. 3, pp. 22–25, 2005.
LibreCat: /record/5660

G. Schryen, “An e-mail honeypot addressing spammers’ behavior in collecting and applying addresses,” in Proceedings of the 6th IEEE Information Assurance Workshop, 2005, pp. 37–41.
LibreCat: /record/5661

G. Schryen, “Security Aspects of Internet Voting,” in 37th Annual Hawaii International Conference on System Sciences, 2004.
LibreCat: /record/5765

G. Schryen, “Effektivität von Lösungsansätzen zur Bekämpfung von Spam,” Wirtschaftsinformatik, vol. 46, no. 4, pp. 281–288, 2004.
LibreCat: /record/5662

G. Schryen, “Fighting Spam: Motivating an Account-based Approach,” in Proceedings of the IADIS International Conference WWW/Internet 2004. vol. 2, 2004, pp. 937–940.
LibreCat: /record/5663

G. Schryen, “How Security Problems Can Compromise Remote Internet Voting Systems,” in Workshop of the ESF TED Programme, 2004, pp. 121–131.
LibreCat: /record/5664

G. Schryen, “Neulich am Hotspot - Bringt Mobiles Internet die Menschen ins Netz?,” in Digitale Teilung - digitale Integrationf: Perspektiven der Internetnutzung, G. Gehrke, Ed. München: KOPAED-Verlag, 2004, pp. 45–51.
LibreCat: /record/5666

G. Schryen, J. Herstell, and M. Schoenen, Online Marktforschung im Mittelstand: Analyse von Konsumentenverhalten in 3D-Internet-Welten. Wiesbaden: Deutscher Universitäts-Verlag, 2003.
LibreCat: /record/5629

G. Schryen and J. Herstell, “Online-Marktforschung - Analyse von Konsumentenverhalten in virtuellen Umgebungen, in: Information Management &; Consulting, 18,2,” IMf: die Zeitschrift für Information Management und Consulting, vol. 18, no. 2, pp. 74–77, 2003.
LibreCat: /record/5630

G. Schryen, “E-Democracy: Internet Voting,” in Proceedings of the IADIS International Conference WWW Internet 2003. vol. 2, Algarve: IADIS Press, 2003, pp. 1017–1021.
LibreCat: /record/5667

G. Schryen, “Internet-Wahlen,” in 6. Internationale Tagung Wirtschaftsinformatik, 2003, pp. 937–956.
LibreCat: /record/5668

G. Schryen and M. Schoenen, “Data Warehouse in der Marktforschung - Analyse von Benutzeraktivitäten in virtuellen Welten,” in Data Warehousing 2002, 2002, pp. 103–119.
LibreCat: /record/5620

G. Schryen and J. Karla, “Elektronisches Papier - Display-Technologie mit weitem Anwendungsspektrum,” Wirtschaftsinformatik, vol. 44, no. 6, pp. 567–574, 2002.
LibreCat: /record/5623

G. Schryen, “Elektronische Zeitung - das Erbe Gutenbergs?,” i-com. Zeitschrift für interaktive und kooperative Medien, no. 3, pp. 36–37, 2002.
LibreCat: /record/5669

G. Schryen, Komponentenorientierte Softwareentwicklung in Softwareunternehmen: Konzeption eines Vorgehensmodells zur Einführung und Etablierung. Wiesbaden: Deutscher Universitäts-Verlag, 2001.
LibreCat: /record/5670