@article{DAN_1983_269_4_a6,
     author = {P. G. Zograf},
     title = {On the spectrum of automorphic {Laplacians} in spaces of modular functions},
     journal = {Doklady Akademii Nauk},
     pages = {802--805},
     publisher = {mathdoc},
     volume = {269},
     number = {4},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1983_269_4_a6/}
}