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@article{DAN_1990_315_4_a9, author = {Yu. M. Davydov}, title = {Formation of a zone with increased concentration of particles under focused}, journal = {Doklady Akademii Nauk}, pages = {813--815}, publisher = {mathdoc}, volume = {315}, number = {4}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1990_315_4_a9/} }
Yu. M. Davydov. Formation of a zone with increased concentration of particles under focused. Doklady Akademii Nauk, Tome 315 (1990) no. 4, pp. 813-815. http://geodesic.mathdoc.fr/item/DAN_1990_315_4_a9/