A Rule-Based Approach Towards Context-Aware User Notification Services. - Richard Etter; Patricia Dockhorn Costa; Tom H. F. Broens (ICPS, 2006)

A Service Architecture for Context Awareness and Reaction Provisioning. - Luiz Olavo Bonino da Silva Santos; Fano Ramparany; Patricia Dockhorn Costa; Peter Vink; Richard Etter; Tom H. F. Broens (IEEE SCW, 2007)

Social radio: a music-based approach to emotional awareness mediation. - Carsten Röcker; Richard Etter (IUI, 2007)

A tangible user interface for multi-user awareness systems. - Richard Etter; Carsten Röcker (TEI, 2007)