@article{DAN_1989_307_5_a0,
     author = {S. A. Avdonin and S. A. Ivanov},
     title = {A generating matrix function in problems of the control of the},
     journal = {Doklady Akademii Nauk},
     pages = {1033--1037},
     publisher = {mathdoc},
     volume = {307},
     number = {5},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1989_307_5_a0/}
}