@article{DE_1985_21_3_a23,
     author = {K. B. Mansimov},
     title = {Multipoint necessary conditions for optimality of controls that are singular in the classical sense in systems with delay},
     journal = {Differencialʹnye uravneni\^a},
     pages = {527--530},
     publisher = {mathdoc},
     volume = {21},
     number = {3},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1985_21_3_a23/}
}