@article {1990,
	title = {Existence and continuous dependence for discontinuous O.D.E.s},
	journal = {Boll. Un. Mat. Ital. B (7) 4 (1990), no. 2, 295--311},
	number = {SISSA;120/88/M},
	year = {1990},
	publisher = {SISSA Library},
	url = {http://hdl.handle.net/1963/716},
	author = {Alberto Bressan and Giovanni Colombo}
}
@article {1990,
	title = {Existence of solutions for a class of non-convex differential inclusions},
	journal = {Rend.Sem.Mat.Univ. Padova, 83 (1990), 71-76},
	number = {SISSA;31/89/M},
	year = {1990},
	publisher = {SISSA Library},
	url = {http://hdl.handle.net/1963/792},
	author = {Fabio Ancona and Giovanni Colombo}
}
