Efficient formulation of the force distribution equations for general tree-structured robotic mechanisms with a mobile base
IEEE transactions on systems, man, and cybernetics. Part B, Cybernetics : a publication of the IEEE Systems, Man, and Cybernetics Society (2000) - Comments
doi: 10.1109/3477.865170  issn: 1083-4419  pubmed: 18252384 

Min-Hsiung Hung, D.E. Orin, K.J. Waldron