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@article{DE_1968_4_1_a9, author = {L. P. Kuptsov}, title = {Harnack's inequality for generalized solutions of second order degenerate elliptic equations}, journal = {Differencialʹnye uravneni\^a}, pages = {110--122}, publisher = {mathdoc}, volume = {4}, number = {1}, year = {1968}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1968_4_1_a9/} }
L. P. Kuptsov. Harnack's inequality for generalized solutions of second order degenerate elliptic equations. Differencialʹnye uravneniâ, Tome 4 (1968) no. 1, pp. 110-122. http://geodesic.mathdoc.fr/item/DE_1968_4_1_a9/