@article{DE_1967_3_12_a8,
     author = {Yu. A. Zhiteneva and G. N. Mil'shtein},
     title = {The minimization of a convex functional by the free trajectories of a linear system},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2081--2093},
     publisher = {mathdoc},
     volume = {3},
     number = {12},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1967_3_12_a8/}
}