@article{ZNSL_2022_516_a0,
     author = {V. M. Babich and M. V. Babich},
     title = {Space-time ray method and quasiphotons of whispering gallery},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {5--19},
     publisher = {mathdoc},
     volume = {516},
     year = {2022},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2022_516_a0/}
}