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Robotics and Autonomous Systems > 2013 > 61 > 4 > 351-361
Journal of Economic Behavior and Organization > 2010 > 76 > 3 > 635-653
Robotics and Autonomous Systems > 2013 > 61 > 4 > 351-361
Journal of Economic Behavior and Organization > 2010 > 76 > 3 > 635-653