@article{ZNSL_1979_82_a7,
     author = {N. V. Proskurin},
     title = {Estimates of the eigenvalues of {Hecke} operators in the space of cusp forms of weight~0},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {136--143},
     publisher = {mathdoc},
     volume = {82},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1979_82_a7/}
}