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@article{DAN_1973_208_5_a8, author = {\`E. Muhamadiev}, title = {On the theory of periodic solutions of nonlinear systems of elliptic equations}, journal = {Doklady Akademii Nauk}, pages = {1035--1037}, publisher = {mathdoc}, volume = {208}, number = {5}, year = {1973}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1973_208_5_a8/} }
È. Muhamadiev. On the theory of periodic solutions of nonlinear systems of elliptic equations. Doklady Akademii Nauk, Tome 208 (1973) no. 5, pp. 1035-1037. http://geodesic.mathdoc.fr/item/DAN_1973_208_5_a8/