@article{IVM_1994_10_a1,
     author = {A. G. Baskakov and V. V. Yurgelas},
     title = {Circular dichotomy of the spectrum of a~class of nonselfadjoint operators},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {12--18},
     publisher = {mathdoc},
     number = {10},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1994_10_a1/}
}