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@article{DAN_1987_296_4_a13, author = {A. Yu. Belyaev}, title = {Wave propagation in a continuous medium with periodically}, journal = {Doklady Akademii Nauk}, pages = {828--831}, publisher = {mathdoc}, volume = {296}, number = {4}, year = {1987}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1987_296_4_a13/} }
A. Yu. Belyaev. Wave propagation in a continuous medium with periodically. Doklady Akademii Nauk, Tome 296 (1987) no. 4, pp. 828-831. http://geodesic.mathdoc.fr/item/DAN_1987_296_4_a13/