@article{DAN_1968_182_3_a7,
     author = {V. A. Yakubovich},
     title = {Theory of adaptive systems},
     journal = {Doklady Akademii Nauk},
     pages = {518--521},
     publisher = {mathdoc},
     volume = {182},
     number = {3},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1968_182_3_a7/}
}