@article{DAN_1980_250_1_a11,
     author = {A. G. Butkovskiy and Yu. I. Samoilenko},
     title = {Controllability of quantum objects},
     journal = {Doklady Akademii Nauk},
     pages = {51--55},
     publisher = {mathdoc},
     volume = {250},
     number = {1},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1980_250_1_a11/}
}