Generation and evaluation of communicative robot gesture
M. Salem, S. Kopp, I. Wachsmuth, K. Rohlfing, F. Joublin, International Journal of Social Robotics, Special Issue on Expectations, Intentions, and Actions 4 (2012) 201–217.

Generation and evaluation of communicative robot gesture
M. Salem, S. Kopp, I. Wachsmuth, K. Rohlfing, F. Joublin, International Journal of Social Robotics, Special Issue on Expectations, Intentions, and Actions 4 (2012) 201–217.

Tutor spotter: Proposing a feature set and evaluating it in a robotic system
K.S. Lohan, K. Rohlfing, K. Pitsch, J. Saunders, H. Lehmann, C.L. Nehaniv, K. Fischer, B. Wrede, International Journal of Social Robotics 4 (2012) 131–146.