@article{IVM_1981_9_a2,
     author = {V. F. Gaposhkin},
     title = {On zeros of trigonometric series with monotone coefficients},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {13--15},
     year = {1981},
     number = {9},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1981_9_a2/}
}