Ecological Interfaces: Extending the Pointing Paradigm by Visual Context. - Antonella De Angeli; Laurent Romary; Frederic Wolff (CONTEXT, 1999)

The Ecological Approach to Multimodal System Design. - Antonella De Angeli; Frederic Wolff; Laurent Romary; Walter Gerbino (Gesture Workshop, 1999)

A Contextual Analysis of Referring Gestures. - Frederic Wolff; Laurent Romary (IUI, 1999)