@conference {koumboulis2001tracking,
	title = {Tracking control of an articulated vehicle using P-D feedback},
	booktitle = {Ktisivios, Santorini, Greece},
	year = {2001},
	author = {Koumboulis, F. and Skarpetis, M. and Kouvakas, N. and and Mertzios, B.}
}
