@article{DE_1975_11_6_a16,
     author = {S. S. Voitenko and E. Ya. Smirnov},
     title = {On the problem of the analytic construction of optimal regulators for systems with periodic coefficients},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1131--1132},
     publisher = {mathdoc},
     volume = {11},
     number = {6},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1975_11_6_a16/}
}