@article{DA_1975_14_a1,
     author = {O. V. Vasiliev and A. I. Tyatyushkin},
     title = {A certain problem of optimal control in a linear system of hyperbolic type},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {11--23},
     year = {1975},
     number = {14},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_1975_14_a1/}
}