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@article{DAN_1978_242_3_a6, author = {L. P. Kuptsov}, title = {The mean property and the maximum principle for parabolic equations of second order}, journal = {Doklady Akademii Nauk}, pages = {529--532}, publisher = {mathdoc}, volume = {242}, number = {3}, year = {1978}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1978_242_3_a6/} }
L. P. Kuptsov. The mean property and the maximum principle for parabolic equations of second order. Doklady Akademii Nauk, Tome 242 (1978) no. 3, pp. 529-532. http://geodesic.mathdoc.fr/item/DAN_1978_242_3_a6/