Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1996_351_5_a3, author = {\`E. Muhamadiev}, title = {Bounded solutions and homotopic invariants of systems of nonlinear differential equations}, journal = {Doklady Akademii Nauk}, pages = {596--598}, publisher = {mathdoc}, volume = {351}, number = {5}, year = {1996}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1996_351_5_a3/} }
È. Muhamadiev. Bounded solutions and homotopic invariants of systems of nonlinear differential equations. Doklady Akademii Nauk, Tome 351 (1996) no. 5, pp. 596-598. http://geodesic.mathdoc.fr/item/DAN_1996_351_5_a3/