Continuous Presence in Collaborative Virtual Environments: Towards a Hybrid Avatar-Agent Model for User Representation. - Michael Gerhard; David J. Moore; Dave J. Hobbs (IVA, 2001)

Evaluating Embodied Conversational Agents in Collaborative Virtual Environments. - Michael Gerhard (Evaluating Embodied Conversational Agents, 2004)

Embodiment and copresence in collaborative interfaces. - Michael Gerhard; David J. Moore; Dave J. Hobbs (Int. J. Hum. Comput. Stud., 2004)

Close Encounters of the Virtual Kind: Agents Simulating Copresence. - Michael Gerhard; David J. Moore; Dave J. Hobbs (Appl. Artif. Intell., 2005)

Using Augmented Reality and Social Media in Mobile Applications to Engage People on Cultural Sites. - Silvia de los Ríos Pérez; María Fernanda Cabrera-Umpiérrez; María Teresa Arredondo; Miguel Páramo del Castrillo; Bastian Baranski; Jochen Meis; Michael Gerhard; Belén Prados; Lucía María Pérez; María del Mar Villafranca (HCI (5), 2014)