@article{DAN_1980_250_5_a14,
     author = {A. V. Lotov},
     title = {On the concept of generalized sets of accessibility and their construction for linear controlled systems},
     journal = {Doklady Akademii Nauk},
     pages = {1081--1083},
     publisher = {mathdoc},
     volume = {250},
     number = {5},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1980_250_5_a14/}
}