@article{IVM_1977_1_a19,
     author = {S. N. Slugin and A. I. Gavrikov},
     title = {A~monotone method of barriers for a~controlled dynamical system},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {141--143},
     publisher = {mathdoc},
     number = {1},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1977_1_a19/}
}