@article{RM_1993_48_4_a0,
     author = {D. V. Kosygin and A. A. Minasov and Ya. G. Sinai},
     title = {Statistical properties of the spectra of {Laplace--Beltrami} operators on {Liouville} surfaces},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {1--142},
     publisher = {mathdoc},
     volume = {48},
     number = {4},
     year = {1993},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1993_48_4_a0/}
}