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@article{IVM_1981_12_a6, author = {B. A. Kats}, title = {An exceptional case of the {Riemann} problem with an oscillating coefficient}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {41--50}, publisher = {mathdoc}, number = {12}, year = {1981}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1981_12_a6/} }
B. A. Kats. An exceptional case of the Riemann problem with an oscillating coefficient. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 12 (1981), pp. 41-50. http://geodesic.mathdoc.fr/item/IVM_1981_12_a6/