Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1987_294_3_a4, author = {V. V. Pukhnachov}, title = {Transformations of equivalence and the hidden symmetry of evolution equations}, journal = {Doklady Akademii Nauk}, pages = {535--538}, publisher = {mathdoc}, volume = {294}, number = {3}, year = {1987}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1987_294_3_a4/} }
V. V. Pukhnachov. Transformations of equivalence and the hidden symmetry of evolution equations. Doklady Akademii Nauk, Tome 294 (1987) no. 3, pp. 535-538. http://geodesic.mathdoc.fr/item/DAN_1987_294_3_a4/