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@article{DE_2004_40_11_a5, author = {V. I. Gurman}, title = {The method of multiple maxima and optimality conditions for singular extremals}, journal = {Differencialʹnye uravneni\^a}, pages = {1486--1493}, publisher = {mathdoc}, volume = {40}, number = {11}, year = {2004}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_2004_40_11_a5/} }
V. I. Gurman. The method of multiple maxima and optimality conditions for singular extremals. Differencialʹnye uravneniâ, Tome 40 (2004) no. 11, pp. 1486-1493. http://geodesic.mathdoc.fr/item/DE_2004_40_11_a5/