@article {1988,
	title = {On differential systems with vector-valued impulsive controls.},
	journal = {Boll. Un. Mat. Ital. B (7)  2  (1988),  no. 3, 641-656},
	number = {SISSA;54/87/M},
	year = {1988},
	publisher = {SISSA Library},
	url = {http://hdl.handle.net/1963/535},
	author = {Alberto Bressan and Franco Rampazzo}
}
