Designing a secure and robust mobile interacting robot for the long term. - Nicola Tomatis; Gregoire Terrien; Ralph Piguet; Daniel Burnier; Samir Bouabdallah; Kai Oliver Arras; Roland Siegwart (ICRA, 2003)

Robox at Expo.02: A large-scale installation of personal robots. - Roland Siegwart; Kai Oliver Arras; Samir Bouabdallah; Daniel Burnier; Gilles Froidevaux; Xavier Greppin; Björn Jensen; Antoine Lorotte; Laetitia Mayor; Mathieu Meisser; Roland Philippsen; Ralph Piguet; et al. (Robotics Auton. Syst., 2003)