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@article{IVM_1997_7_a2, author = {I. I. Goryunov}, title = {A~generalization of the {Dressler} theorem}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {18--20}, publisher = {mathdoc}, number = {7}, year = {1997}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1997_7_a2/} }
I. I. Goryunov. A~generalization of the Dressler theorem. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 7 (1997), pp. 18-20. http://geodesic.mathdoc.fr/item/IVM_1997_7_a2/