O.G.R.E. - Open Gestures Recognition Engine. - José Miguel Salles Dias; Pedro Nande; Nuno Barata; André Correia (SIBGRAPI, 2004)

O.G.R.E. - Open Gestures Recognition Engine, a Platform for Gesture-Based Communication and Interaction. - José Miguel Salles Dias; Pedro Nande; Nuno Barata; André Correia (Gesture Workshop, 2005)