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@article{IVM_1989_3_a8, author = {K. N. Ospanov and M. Otelbaev}, title = {A generalized {Cauchy--Riemann} system with nonsmooth coefficients}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {48--56}, publisher = {mathdoc}, number = {3}, year = {1989}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1989_3_a8/} }
K. N. Ospanov; M. Otelbaev. A generalized Cauchy--Riemann system with nonsmooth coefficients. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 3 (1989), pp. 48-56. http://geodesic.mathdoc.fr/item/IVM_1989_3_a8/