Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1991_317_3_a17, author = {A. A. Tolstonogov}, title = {Extremal selectors of multivalued mappings and the ``bang-bang''}, journal = {Doklady Akademii Nauk}, pages = {589--593}, publisher = {mathdoc}, volume = {317}, number = {3}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1991_317_3_a17/} }
A. A. Tolstonogov. Extremal selectors of multivalued mappings and the ``bang-bang''. Doklady Akademii Nauk, Tome 317 (1991) no. 3, pp. 589-593. http://geodesic.mathdoc.fr/item/DAN_1991_317_3_a17/