@conference {87,
	title = {Local linearization method in the integration of multibody equations},
	booktitle = {Proceedings of the ECCOMAS Thematic Conference Multibody Dynamics},
	series = {NULL},
	year = {2013},
	keywords = {simulation},
	author = {G. Gil and R. G. Sanfelice and P. E. Nikravesh}
}
@conference {86,
	title = {Numerical integration scheme using singular perturbation method},
	booktitle = {Proceedings of the ASME 2013 International Design Engineering Technical Conferences \& Computers and Information in Engineering Conference},
	series = {NULL},
	year = {2013},
	keywords = {simulation},
	author = {G. Gil and R. G. Sanfelice and P. E. Nikravesh}
}
