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@article{DE_1976_12_11_a21, author = {K. Kh. Boimatov}, title = {Selfadjointness of elliptic second order differential operators}, journal = {Differencialʹnye uravneni\^a}, pages = {2089--2091}, publisher = {mathdoc}, volume = {12}, number = {11}, year = {1976}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1976_12_11_a21/} }
K. Kh. Boimatov. Selfadjointness of elliptic second order differential operators. Differencialʹnye uravneniâ, Tome 12 (1976) no. 11, pp. 2089-2091. http://geodesic.mathdoc.fr/item/DE_1976_12_11_a21/