@article{RM_1989_44_5_a18,
     author = {G. D. Negmatova},
     title = {The distribution of values of non-principal characters in lacunary sequences},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {214--215},
     publisher = {mathdoc},
     volume = {44},
     number = {5},
     year = {1989},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1989_44_5_a18/}
}