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@article{FPM_1995_1_2_a6, author = {E. A. Lapshin}, title = {The definition of acoustic signal propagation domain}, journal = {Fundamentalʹna\^a i prikladna\^a matematika}, pages = {431--454}, publisher = {mathdoc}, volume = {1}, number = {2}, year = {1995}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/FPM_1995_1_2_a6/} }
E. A. Lapshin. The definition of acoustic signal propagation domain. Fundamentalʹnaâ i prikladnaâ matematika, Tome 1 (1995) no. 2, pp. 431-454. http://geodesic.mathdoc.fr/item/FPM_1995_1_2_a6/
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