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@article{DAN_1990_312_4_a2, author = {S. A. Vavilov}, title = {A solvability criterion for a resonance periodic problem in the}, journal = {Doklady Akademii Nauk}, pages = {787--790}, publisher = {mathdoc}, volume = {312}, number = {4}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1990_312_4_a2/} }
S. A. Vavilov. A solvability criterion for a resonance periodic problem in the. Doklady Akademii Nauk, Tome 312 (1990) no. 4, pp. 787-790. http://geodesic.mathdoc.fr/item/DAN_1990_312_4_a2/