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@article{DAN_1978_239_3_a8, author = {V. P. Polityukov}, title = {On the theory of upper and lower solutions for the nonlinear transport equation}, journal = {Doklady Akademii Nauk}, pages = {534--537}, publisher = {mathdoc}, volume = {239}, number = {3}, year = {1978}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1978_239_3_a8/} }
V. P. Polityukov. On the theory of upper and lower solutions for the nonlinear transport equation. Doklady Akademii Nauk, Tome 239 (1978) no. 3, pp. 534-537. http://geodesic.mathdoc.fr/item/DAN_1978_239_3_a8/