On Obligations. - Manuel Hilty; David A. Basin; Alexander Pretschner (ESORICS, 2005)

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

Distributed usage control. - Alexander Pretschner; Manuel Hilty; David A. Basin (Commun. ACM, 2006)

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

Usage Control in Service-Oriented Architectures. - Alexander Pretschner; Fabio Massacci; Manuel Hilty (TrustBus, 2007)

Specification and enforcement in distributed usage control. - Manuel Hilty (2007)

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

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