P. Flores, R. Leine, and C. Glocker. Multibody Dynamics: Computational Methods and Applications, volume 23 of Computational Methods in Applied Sciences Series, Springer, Dordrecht, C4.(2011)
C. Gehring, R. Diethelm, R. Siegwart, G. Nützi, and R. Leine. Proceedings of the ASME 2014 International Design Engineering Technical Conferences (IDETC), DETC2014-34374, Buffalo, New York, (August 2014)