A Common Semantics Representation for SDL and TTCN. - Thomas Walter 001; Jan Ellsberger; Finn Kristoffersen; Paul van den Merkhof (PSTV, 1992)

TTCN: Towards a Formal Semantics and Validation of Test Suites. - Finn Kristoffersen; Thomas Walter 001 (Comput. Networks ISDN Syst., 1996)

Framework and Architecture for Secure Mobile Business Applications. - Jochen Haller; Philip Robinson; Thomas Walter 001; Roger Kilian-Kehr (SEC, 2003)

Smart Devices for Next Generation Mobile Services. - Chie Noda; Thomas Walter 001 (CASSIS, 2004)

Security and Trust Issues in Ubiquitous Environments - The Business-to-Employee Dimension. - Thomas Walter 001; Laurent Bussard; Philip Robinson; Yves Roudier (SAINT Workshops, 2004)

Secure mobile business applications - framework, architecture and implementation. - Thomas Walter 001; Laurent Bussard; Yves Roudier; Jochen Haller; Roger Kilian-Kehr; Joachim Posegga; Philip Robinson (Inf. Secur. Tech. Rep., 2004)

POSSET - Policy-Driven Secure Session Transfer. - Philip Robinson; Christian Schaefer; Thomas Walter 001 (ISPEC, 2005)

Service-oriented Accounting Configuration Management based on Diameter. - Frank Eyermann; Péter Rácz; Burkhard Stiller; Christian Schaefer; Thomas Walter 001 (LCN, 2005)

Generic accounting configuration management for heterogeneous mobile networks. - Frank Eyermann; Péter Rácz; Burkhard Stiller; Christian Schaefer; Thomas Walter 001 (WMASH, 2005)

Identification in Infrastructureless Networks. - Gina Kounga; Thomas Walter 001 (ESAS, 2006)

Usage Control Requirements in Mobile and Ubiquitous Computing Applications. - Manuel Hilty; Alexander Pretschner; Christian Schaefer; Thomas Walter 001 (ICSNC, 2006)

Accounting management for session mobility in an ubiquitous environment. - Srisakul Thakolsri; Christian Schaefer; Thomas Walter 001; Wolfgang Kellerer (IWCMC, 2006)

Context-Aware Access Control; Making Access Control Decisions Based on Context Information. - Sven Lachmund; Thomas Walter 001; Laurent Gomez; Laurent Bussard; Eddy Olk (MobiQuitous, 2006)

Diameter-based accounting management for wireless services. - Frank Eyermann; Péter Rácz; Burkhard Stiller; Christian Schaefer; Thomas Walter 001 (WCNC, 2006)

A Policy Language for Distributed Usage Control. - Manuel Hilty; Alexander Pretschner; David A. Basin; Christian Schaefer; Thomas Walter 001 (ESORICS, 2007)

Security in Pervasive Computing Calling for new Security Principles. - Alf Zugenmaier; Thomas Walter 001 (ICPS, 2007)

Monitors for Usage Control. - Manuel Hilty; Alexander Pretschner; David A. Basin; Christian Schaefer; Thomas Walter 001 (IFIPTM, 2007)

DUKE - Distributed Usage Control Enforcement. - Manuel Hilty; Alexander Pretschner; Christian Schaefer; Thomas Walter 001 (POLICY, 2007)

A Security-by-Contract Architecture for Pervasive Services. - Nicola Dragoni; Fabio Massacci; Christian Schaefer; Thomas Walter 001; Eric Vétillard (SECPerU, 2007)

Negotiation of Usage Control Policies - Simply the Best? - Alexander Pretschner; Thomas Walter 001 (ARES, 2008)

Mechanisms for usage control. - Alexander Pretschner; Manuel Hilty; David A. Basin; Christian Schaefer; Thomas Walter 001 (AsiaCCS, 2008)

Evidence Gathering for Remuneration of Shared Connections. - Thomas Walter 001; Christian Schaefer; Gina Kounga; Makoto Hamatsu (CNSR, 2008)

Policy Evolution in Distributed Usage Control. - Alexander Pretschner; Florian Schütz; Christian Schaefer; Thomas Walter 001 (STM@IFIPTM, 2008)

Enhancing Java ME Security Support with Resource Usage Monitoring. - Fabio Martinelli; Fabio Massacci; Paolo Mori; Christian Schaefer; Thomas Walter 001 (ERCIM News, 2008)

Usage Control Enforcement: Present and Future. - Alexander Pretschner; Manuel Hilty; Florian Schütz; Christian Schaefer; Thomas Walter 001 (IEEE Secur. Priv., 2008)

Formal Analyses of Usage Control Policies. - Alexander Pretschner; Judith Rüesch; Christian Schaefer; Thomas Walter 001 (ARES, 2009)

Breaking the memory secrecy assumption. - Raoul Strackx; Yves Younan; Pieter Philippaerts; Frank Piessens; Sven Lachmund; Thomas Walter 001 (EUROSEC, 2009)

Usage Control Policy Enforcement in OpenOffice.org and Information Flow. - Christian Schaefer; Thomas Walter 001; Matús Harvan; Alexander Pretschner (ISSA, 2009)

What the heck is this application doing? - A security-by-contract architecture for pervasive services. - Nicola Dragoni; Fabio Massacci; Thomas Walter 001; Christian Schaefer (Comput. Secur., 2009)

Proving Reliability of Anonymous Information in VANETs. - Gina Kounga; Thomas Walter 001; Sven Lachmund (IEEE Trans. Veh. Technol., 2009)

Runtime monitoring for next generation Java ME platform. - Gabriele Costa 001; Fabio Martinelli; Paolo Mori; Christian Schaefer; Thomas Walter 001 (Comput. Secur., 2010)

Code Pointer Masking: Hardening Applications against Code Injection Attacks. - Pieter Philippaerts; Yves Younan; Stijn Muylle; Frank Piessens; Sven Lachmund; Thomas Walter 001 (DIMVA, 2011)

Filter-resistant code injection on ARM. - Yves Younan; Pieter Philippaerts; Frank Piessens; Wouter Joosen; Sven Lachmund; Thomas Walter 001 (J. Comput. Virol., 2011)

Generating certification authority authenticated public keys in ad hoc networks. - Gina Kounga; Chris J. Mitchell; Thomas Walter 001 (Secur. Commun. Networks, 2012)

CPM: Masking Code Pointers to Prevent Code Injection Attacks. - Pieter Philippaerts; Yves Younan; Stijn Muylle; Frank Piessens; Sven Lachmund; Thomas Walter 001 (ACM Trans. Inf. Syst. Secur., 2013)