Robotics and Autonomous Systems
Robotics and Autonomous Systems > 2004 > 46 > 4 > 247-259
Robotics and Autonomous Systems > 2004 > 46 > 4 > 221-246
Robotics and Autonomous Systems > 2004 > 46 > 4 > 195-204
Robotics and Autonomous Systems > 2004 > 46 > 4 > 205-219