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@article{DAN_1985_285_4_a0, author = {K. I. Babenko}, title = {The maximum principle for the {Euler--Tricomi} equation}, journal = {Doklady Akademii Nauk}, pages = {777--782}, publisher = {mathdoc}, volume = {285}, number = {4}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1985_285_4_a0/} }
K. I. Babenko. The maximum principle for the Euler--Tricomi equation. Doklady Akademii Nauk, Tome 285 (1985) no. 4, pp. 777-782. http://geodesic.mathdoc.fr/item/DAN_1985_285_4_a0/