@article{ZNSL_1983_128_a16,
     author = {V. V. Skripnikov},
     title = {On the number of quasimodes of whispering gallery type},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {152--157},
     publisher = {mathdoc},
     volume = {128},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1983_128_a16/}
}