@article{DAN_1995_341_2_a9,
     author = {O. A. Godin},
     title = {A sound field in the vicinity of a caustic in a nonstationary},
     journal = {Doklady Akademii Nauk},
     pages = {185--189},
     publisher = {mathdoc},
     volume = {341},
     number = {2},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1995_341_2_a9/}
}