@conference {skarpetis2006robust,
	title = {Robust asymptotic output tracking for four-wheel-steering vehicles},
	booktitle = {2006 IEEE International Conference on Mechatronics},
	year = {2006},
	pages = {488{\textendash}492},
	publisher = {IEEE},
	organization = {IEEE},
	author = {Skarpetis, Michael G and Koumboulis, Fotios N and Ntellis, Achilleas S and Chamilothoris, George E}
}
