Towards User Authentication Flexibility. - Laurent Gomez; Ivonne Thomas (SECRYPT, 2007)

Quantified Trust Levels for Authentication. - Ivonne Thomas; Michael Menzel 001; Christoph Meinel (ISSE, 2008)

Using quantified trust levels to describe authentication requirements in federated identity management. - Ivonne Thomas; Michael Menzel 001; Christoph Meinel (SWS, 2008)

Security Requirements Specification in Service-Oriented Business Process Management. - Michael Menzel 001; Ivonne Thomas; Christoph Meinel (ARES, 2009)

Enhancing Claim-Based Identity Management by Adding a Credibility Level to the Notion of Claims. - Ivonne Thomas; Christoph Meinel (IEEE SCC, 2009)

Trust Requirements in Identity Federation Topologies. - Uwe Kylau; Ivonne Thomas; Michael Menzel 001; Christoph Meinel (AINA, 2009)

A Web Service Architecture for Decentralised Identity- and Attribute-Based Access Control. - Regina N. Hebig; Christoph Meinel; Michael Menzel 001; Ivonne Thomas; Robert Warschofsky (ICWS, 2009)

Security Requirements Specification in Process-aware Information Systems. - Michael Menzel 001; Ivonne Thomas; Benjamin Schüler; Maxim Schnjakin; Christoph Meinel (ISSE, 2009)

A message meta model for federated authentication in service-oriented architectures. - Martin Wolf; Ivonne Thomas; Michael Menzel 001; Christoph Meinel (SOCA, 2009)

Reliable Digital Identities for SOA and the Web. - Ivonne Thomas (AlgoSyn, 2010)

An identity provider to manage reliable digital identities for SOA and the web. - Ivonne Thomas; Christoph Meinel (IDtrust, 2010)

The Service Security Lab: A Model-Driven Platform to Compose and Explore Service Security in the Cloud. - Michael Menzel 001; Robert Warschofsky; Ivonne Thomas; Christian Willems; Christoph Meinel (SERVICES, 2010)

Whom to Trust? Generating WS-Security Policies Based on Assurance Information. - Ivonne Thomas; Robert Warschofsky; Christoph Meinel (ECOWS, 2011)

An Attribute Assurance Framework to Define and Match Trust in Identity Attributes. - Ivonne Thomas; Christoph Meinel (ICWS, 2011)