@article{TRSPY_1981_153_a0,
     author = {A. B. Venkov},
     title = {Spectral theory of automorphic functions},
     journal = {Informatics and Automation},
     pages = {3--171},
     publisher = {mathdoc},
     volume = {153},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1981_153_a0/}
}