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@article{IVM_1975_6_a14, author = {I. G. Salekhova}, title = {The homogeneous {Riemann} problem in the case of a~countable set of open arcs}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {124--135}, publisher = {mathdoc}, number = {6}, year = {1975}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1975_6_a14/} }
I. G. Salekhova. The homogeneous Riemann problem in the case of a~countable set of open arcs. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 6 (1975), pp. 124-135. http://geodesic.mathdoc.fr/item/IVM_1975_6_a14/