@article{TRSPY_1981_157_a0,
     author = {A. N. Andrianov},
     title = {Degeneration of rings of {Hecke} operators on spaces of theta-series},
     journal = {Informatics and Automation},
     pages = {3--18},
     publisher = {mathdoc},
     volume = {157},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1981_157_a0/}
}