@article{RSMUP_1989__81__229_0,
     author = {Colombo, Giovanni},
     title = {Approximate and relaxed solutions of differential inclusions},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {229--238},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {81},
     year = {1989},
     mrnumber = {1020197},
     zbl = {0688.34007},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_1989__81__229_0/}
}