=40pt =1 Papadopoulos, E., ``Nonholonomic Behavior in Free-floating Space Manipulators and its Utilization'', in Nonholonomic Motion Planning, edited by Zexiang Li and J.F. Canny, Kluwer Academic Publishers, Boston, MA, 1993, pp. 423-445.
=40pt =1 Papadopoulos, E. and Dubrowsky, S., ``Dynamic Singularities in Free-floating Space Manipulators'', in Space Robotics: Dynamics and Control, edited by Y. Xu and T. Kanade, Kluwer Academic Publishers, Boston, MA, 1993, pp. 77-100.