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@article{DE_1986_22_11_a12, author = {K. B. Mansimov}, title = {Optimality of quasisingular controls in {Goursat--Darboux} systems}, journal = {Differencialʹnye uravneni\^a}, pages = {1952--1960}, publisher = {mathdoc}, volume = {22}, number = {11}, year = {1986}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1986_22_11_a12/} }
K. B. Mansimov. Optimality of quasisingular controls in Goursat--Darboux systems. Differencialʹnye uravneniâ, Tome 22 (1986) no. 11, pp. 1952-1960. http://geodesic.mathdoc.fr/item/DE_1986_22_11_a12/