@article{DE_1974_10_7_a4,
     author = {E. E. Barbashina},
     title = {The computation of singular controls},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1186--1195},
     publisher = {mathdoc},
     volume = {10},
     number = {7},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1974_10_7_a4/}
}