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@article{DE_1984_20_11_a17, author = {S. M. Shugrin}, title = {A system of inequalities connected with elliptic and parabolic operators}, journal = {Differencialʹnye uravneni\^a}, pages = {1975--1985}, publisher = {mathdoc}, volume = {20}, number = {11}, year = {1984}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1984_20_11_a17/} }
S. M. Shugrin. A system of inequalities connected with elliptic and parabolic operators. Differencialʹnye uravneniâ, Tome 20 (1984) no. 11, pp. 1975-1985. http://geodesic.mathdoc.fr/item/DE_1984_20_11_a17/