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@article{KUKZ_1970_7_7_a38, author = {O. M. Teut}, title = {A problem for a linear system of partial differential equations of mixed type}, journal = {Trudy seminara po kraevym zada\v{c}am}, pages = {256--261}, publisher = {mathdoc}, volume = {7}, number = {7}, year = {1970}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KUKZ_1970_7_7_a38/} }
O. M. Teut. A problem for a linear system of partial differential equations of mixed type. Trudy seminara po kraevym zadačam, Trudy Seminara po Kraevym Zadacham, Tome 7 (1970) no. 7, pp. 256-261. http://geodesic.mathdoc.fr/item/KUKZ_1970_7_7_a38/