The ESA Lunar Robotics Challenge: Simulating operations at the lunar south pole. - Belo, Felipe A. W.; Birk, Andreas; Brunskill, Christopher; Kirchner, Frank; Lappas, Vaios; Remy, C. David; Roccella, Stefano; Rossi, Claudio; Tikanmäki, Antti; Visentin, Gianfranco (Journal of Field Robotics, 2012)