@article{CHEB_2018_19_3_a16,
     author = {V. N. Kuznetsov and O. A. Matveeva},
     title = {On the problem of generalized characters},
     journal = {\v{C}eby\v{s}evskij sbornik},
     pages = {210--218},
     publisher = {mathdoc},
     volume = {19},
     number = {3},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CHEB_2018_19_3_a16/}
}