@article{ZNSL_1980_99_a12,
     author = {V. G. Krasavin and M. M. Popov},
     title = {Excitation coefficients of the whispering gallery waves in a~vicinity of concave boundary with curvature vanishing at a~point},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {138--145},
     publisher = {mathdoc},
     volume = {99},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1980_99_a12/}
}