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@article{DAN_1982_264_3_a7, author = {V. V. Lychagin}, title = {The geometry and topology of shock waves}, journal = {Doklady Akademii Nauk}, pages = {551--555}, publisher = {mathdoc}, volume = {264}, number = {3}, year = {1982}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1982_264_3_a7/} }
V. V. Lychagin. The geometry and topology of shock waves. Doklady Akademii Nauk, Tome 264 (1982) no. 3, pp. 551-555. http://geodesic.mathdoc.fr/item/DAN_1982_264_3_a7/