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@article{DE_1979_15_10_a11, author = {G. V. Sherbina}, title = {On the question of a priori estimates for solutions of second-order equations}, journal = {Differencialʹnye uravneni\^a}, pages = {1840--1847}, publisher = {mathdoc}, volume = {15}, number = {10}, year = {1979}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1979_15_10_a11/} }
G. V. Sherbina. On the question of a priori estimates for solutions of second-order equations. Differencialʹnye uravneniâ, Tome 15 (1979) no. 10, pp. 1840-1847. http://geodesic.mathdoc.fr/item/DE_1979_15_10_a11/