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@article{DE_1991_27_1_a8, author = {M. G. Karatopraklieva}, title = {A nonlocal boundary value problem for an equation of mixed type}, journal = {Differencialʹnye uravneni\^a}, pages = {68--79}, publisher = {mathdoc}, volume = {27}, number = {1}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1991_27_1_a8/} }
M. G. Karatopraklieva. A nonlocal boundary value problem for an equation of mixed type. Differencialʹnye uravneniâ, Tome 27 (1991) no. 1, pp. 68-79. http://geodesic.mathdoc.fr/item/DE_1991_27_1_a8/