Potentially Distributable Energy: Towards Energy Autonomy in Large Population of Mobile Robots. - Trung Dung Ngo; Hector Raposo; Henrik Schiøler (CIRA, 2007)

Multiagent robotics: toward energy autonomy. - Trung Dung Ngo; Hector Raposo; Henrik Schiøler (Artif. Life Robotics, 2008)