Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1985_285_2_a15, author = {R. Ya. Matsyuk}, title = {Lagrangian analysis of invariant third-order equations of motion}, journal = {Doklady Akademii Nauk}, pages = {327--330}, publisher = {mathdoc}, volume = {285}, number = {2}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1985_285_2_a15/} }
R. Ya. Matsyuk. Lagrangian analysis of invariant third-order equations of motion. Doklady Akademii Nauk, Tome 285 (1985) no. 2, pp. 327-330. http://geodesic.mathdoc.fr/item/DAN_1985_285_2_a15/