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@article{KUKZ_1974_11_11_a19, author = {L. G. Salekhov}, title = {The {Riemann} problem for a countable set of contours}, journal = {Trudy seminara po kraevym zada\v{c}am}, pages = {149--154}, publisher = {mathdoc}, volume = {11}, number = {11}, year = {1974}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KUKZ_1974_11_11_a19/} }
L. G. Salekhov. The Riemann problem for a countable set of contours. Trudy seminara po kraevym zadačam, Trudy Seminara po Kraevym Zadacham, Tome 11 (1974) no. 11, pp. 149-154. http://geodesic.mathdoc.fr/item/KUKZ_1974_11_11_a19/