Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1976_231_6_a1, author = {G. V. Jaiani}, title = {Riquier problems with weight for a fourth order degenerate equation}, journal = {Doklady Akademii Nauk}, pages = {1285--1288}, publisher = {mathdoc}, volume = {231}, number = {6}, year = {1976}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1976_231_6_a1/} }
G. V. Jaiani. Riquier problems with weight for a fourth order degenerate equation. Doklady Akademii Nauk, Tome 231 (1976) no. 6, pp. 1285-1288. http://geodesic.mathdoc.fr/item/DAN_1976_231_6_a1/