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@article{DAN_1965_162_1_a10, author = {V. P. Bykov}, title = {Ray caustics and natural oscillations in open cavities}, journal = {Doklady Akademii Nauk}, pages = {46--49}, publisher = {mathdoc}, volume = {162}, number = {1}, year = {1965}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1965_162_1_a10/} }
V. P. Bykov. Ray caustics and natural oscillations in open cavities. Doklady Akademii Nauk, Tome 162 (1965) no. 1, pp. 46-49. http://geodesic.mathdoc.fr/item/DAN_1965_162_1_a10/