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@article{DAN_1988_303_5_a5, author = {N. P. Osmolovskii}, title = {Higher-order necessary and sufficient conditions for {Pontryagin}}, journal = {Doklady Akademii Nauk}, pages = {1052--1056}, publisher = {mathdoc}, volume = {303}, number = {5}, year = {1988}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1988_303_5_a5/} }
N. P. Osmolovskii. Higher-order necessary and sufficient conditions for Pontryagin. Doklady Akademii Nauk, Tome 303 (1988) no. 5, pp. 1052-1056. http://geodesic.mathdoc.fr/item/DAN_1988_303_5_a5/