@article{DE_2004_40_2_a3,
     author = {M. V. Topunov},
     title = {On the {Existence} of an {Optimal} {Control} in a {Nonlinear} {Minimum} {Time} {Problem}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {177--182},
     publisher = {mathdoc},
     volume = {40},
     number = {2},
     year = {2004},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2004_40_2_a3/}
}