@article{TRSPY_1991_200_a5,
     author = {V. A. Bykovskii and A. I. Vinogradov},
     title = {Mean value of {Hecke} series of parabolic forms},
     journal = {Informatics and Automation},
     pages = {57--74},
     publisher = {mathdoc},
     volume = {200},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1991_200_a5/}
}