P.  Ruvolo, Wu, T., and Movellan, J., ?Control by Gradient Collocation: Applications to Optimal Obstacle Avoidance and Minimum Torque Control?, in IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2012.

P.  Ruvolo, Fasel, I., and Movellan, J., ?A Learning Approach to Hierarchical Feature Selection and Aggregation?, Pattern Recognition Letters, 2010.