Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1988_44_3_a1, author = {L. A. Bagirov}, title = {Smoothness of weak solutions of boundary-value problems for equations of {Chaplygin} type}, journal = {Matemati\v{c}eskie zametki}, pages = {298--308}, publisher = {mathdoc}, volume = {44}, number = {3}, year = {1988}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1988_44_3_a1/} }
L. A. Bagirov. Smoothness of weak solutions of boundary-value problems for equations of Chaplygin type. Matematičeskie zametki, Tome 44 (1988) no. 3, pp. 298-308. http://geodesic.mathdoc.fr/item/MZM_1988_44_3_a1/