@article{DAN_1963_153_5_a8,
     author = {B. N. Petrov and S. V. Emel'yanov},
     title = {Design principles for variable-structure combined automatic control systems},
     journal = {Doklady Akademii Nauk},
     pages = {1020--1023},
     publisher = {mathdoc},
     volume = {153},
     number = {5},
     year = {1963},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1963_153_5_a8/}
}