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@article{IVM_1999_11_a2, author = {M. N. Gavrilyuk}, title = {On the covering of disks in the {Bieberbach--Eilenberg} class}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {20--23}, publisher = {mathdoc}, number = {11}, year = {1999}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1999_11_a2/} }
M. N. Gavrilyuk. On the covering of disks in the Bieberbach--Eilenberg class. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 11 (1999), pp. 20-23. http://geodesic.mathdoc.fr/item/IVM_1999_11_a2/