%0 Journal Article %A Colombo, Giovanni %T Approximate and relaxed solutions of differential inclusions %J Rendiconti del Seminario Matematico della Università di Padova %D 1989 %P 229-238 %V 81 %I Seminario Matematico of the University of Padua %U http://www.numdam.org/item/RSMUP_1989__81__229_0/ %G en %F RSMUP_1989__81__229_0