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@article{DE_1980_16_8_a9, author = {I. T. Skorodinskii}, title = {Investigation of the third variation of a functional on singular controls}, journal = {Differencialʹnye uravneni\^a}, pages = {1438--1444}, publisher = {mathdoc}, volume = {16}, number = {8}, year = {1980}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1980_16_8_a9/} }
I. T. Skorodinskii. Investigation of the third variation of a functional on singular controls. Differencialʹnye uravneniâ, Tome 16 (1980) no. 8, pp. 1438-1444. http://geodesic.mathdoc.fr/item/DE_1980_16_8_a9/