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@article{IVM_1970_12_a5, author = {E. L. Makarova}, title = {A~certain problem for a~nonlinear equation of mixed type}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {47--52}, publisher = {mathdoc}, number = {12}, year = {1970}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1970_12_a5/} }
E. L. Makarova. A~certain problem for a~nonlinear equation of mixed type. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 12 (1970), pp. 47-52. http://geodesic.mathdoc.fr/item/IVM_1970_12_a5/