@article{IVM_1964_4_a11,
     author = {M. F. Kotsur},
     title = {Some special classes of analytic functions in a~circular {annulus.~I}},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {79--85},
     publisher = {mathdoc},
     number = {4},
     year = {1964},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1964_4_a11/}
}