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@article{DAN_1971_200_5_a5, author = {V. G. Limanskii}, title = {Comparison theorems for some differential operator equations}, journal = {Doklady Akademii Nauk}, pages = {1030--1033}, publisher = {mathdoc}, volume = {200}, number = {5}, year = {1971}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1971_200_5_a5/} }
V. G. Limanskii. Comparison theorems for some differential operator equations. Doklady Akademii Nauk, Tome 200 (1971) no. 5, pp. 1030-1033. http://geodesic.mathdoc.fr/item/DAN_1971_200_5_a5/