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@article{IVM_1985_6_a2, author = {B. A. Kats}, title = {The {Riemann} problem on a~closed {Jordan} curve in the semicontinuous formulation}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {14--22}, publisher = {mathdoc}, number = {6}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1985_6_a2/} }
B. A. Kats. The Riemann problem on a~closed Jordan curve in the semicontinuous formulation. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 6 (1985), pp. 14-22. http://geodesic.mathdoc.fr/item/IVM_1985_6_a2/