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@article{DAN_1978_240_4_a4, author = {L. I. Kamynin and B. N. Khimchenko}, title = {Investigations on the maximum principle}, journal = {Doklady Akademii Nauk}, pages = {774--777}, publisher = {mathdoc}, volume = {240}, number = {4}, year = {1978}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1978_240_4_a4/} }
L. I. Kamynin; B. N. Khimchenko. Investigations on the maximum principle. Doklady Akademii Nauk, Tome 240 (1978) no. 4, pp. 774-777. http://geodesic.mathdoc.fr/item/DAN_1978_240_4_a4/