@article{DE_1989_25_6_a35,
     author = {K. B. Mansimov},
     title = {Optimality of singular controls in systems with delay that are controllable by means of initial functions},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1081--1084},
     publisher = {mathdoc},
     volume = {25},
     number = {6},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1989_25_6_a35/}
}