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@article{DAN_1984_276_2_a10, author = {E. A. Semina}, title = {The method of the alternating {Pontryagin} integral in linear}, journal = {Doklady Akademii Nauk}, pages = {299--302}, publisher = {mathdoc}, volume = {276}, number = {2}, year = {1984}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1984_276_2_a10/} }
E. A. Semina. The method of the alternating Pontryagin integral in linear. Doklady Akademii Nauk, Tome 276 (1984) no. 2, pp. 299-302. http://geodesic.mathdoc.fr/item/DAN_1984_276_2_a10/