Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1973_210_4_a9, author = {V. V. Rumyantsev}, title = {Chetaev{\textquoteright}s principle}, journal = {Doklady Akademii Nauk}, pages = {787--790}, publisher = {mathdoc}, volume = {210}, number = {4}, year = {1973}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1973_210_4_a9/} }
V. V. Rumyantsev. Chetaev’s principle. Doklady Akademii Nauk, Tome 210 (1973) no. 4, pp. 787-790. http://geodesic.mathdoc.fr/item/DAN_1973_210_4_a9/