EEMCS

Helme, A. and Stabell-Kulø, T. (1999) Offline delegation. In: 8th USENIX Security Symp., Washington, DC. pp. 25-33. USENIX Association. ISBN 1880446286

Havinga, P.J.M. and Helme, A. and Mullender, S.J. and Smit, G.J.M. and Smit, J. (1998) Battery-powered Distributed Systems (Extended Abstract). In: 8th ACM SIGOPS European Workshop on Support for Composing Distributed Applications, Sintra, Portugal. pp. 210-213. ACM Press.

Mullender, S.J. and Smit, G.J.M. and Havinga, P.J.M. and Helme, A. and Hartvigsen, G. and Fallmyr, T. and Stabell-Kulø, T. and Bartoli, A. and Rizzo, L. and Avvenuti, M. (1998) The MobyDick architecture. Technical Report TR-CTIT-98-18, Centre for Telematics and Information Technology University of Twente, Enschede. ISSN 1381-3625

Smit, G.J.M. and Havinga, P.J.M. and Mullender, S.J. and Helme, A. and Hartvigsen, G. and Fallmyr, T. and Stabell-Kulø, T. and Bartoli, A. and Dini, G. and Rizzo, L. and Avvenuti, M. (1998) Overview of the Moby Dick project. In: Euromicro Summer School on Mobile Computing, Oulu, Finland. pp. 157-168. VTT Information Service. ISBN 951-38-4576-1

Stabell-Kulø, T. and Helme, A. and Dini, G. (1998) Detecting Key-Dependencies. In: 3rd Australasian Conf. on Information Security and Privacy (ACISP), Brisbane, Queensland, Australia. pp. 356-366. Springer-Verlag. ISBN 3-540-64732-5

Helme, A. (1997) A system for secure user-controlled electronic transactions. PhD thesis, University of Twente. CTIT Ph.D.-thesis series No. 97-17 ISBN 90-423-0011-6

Helme, A. and Stabell-Kulø, T. (1997) Security Functions for a File Repository. Operating Systems Review, 31 (2). pp. 3-8. ISSN 0163-5980

Hartvigsen, G. and Johansen, S. and Helme, A. and Widding, R.A. and Bellika, G. and Cao, W. (1996) The Virtual Secretary Architecture for Secure Software Agents. In: 1st Int. Conf. on the Practical Application of Intelligent Agents and Multi-Agent Technology (PAAM), London, UK. pp. 843-851. Practical Application Company. ISBN 0952555433

Havinga, P.J.M. and Smit, G.J.M. and Helme, A. (1996) Survey of electronic payment methods and systems. In: Web technology, new media, communications and telematics theory, methods, tools and applications (Euromedia), London, UK. pp. 180-187. Society for Computer Simulation. ISBN 1-56555-102-8