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@article{DAN_1976_230_4_a4, author = {G. D. Karatoprakliev}, title = {On a class of equations of mixed type in multidimensional domains}, journal = {Doklady Akademii Nauk}, pages = {769--772}, publisher = {mathdoc}, volume = {230}, number = {4}, year = {1976}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1976_230_4_a4/} }
G. D. Karatoprakliev. On a class of equations of mixed type in multidimensional domains. Doklady Akademii Nauk, Tome 230 (1976) no. 4, pp. 769-772. http://geodesic.mathdoc.fr/item/DAN_1976_230_4_a4/