@article{DAN_1983_269_4_a7,
     author = {M. A. Krasnosel'skii and A. V. Pokrovskii},
     title = {Taking account of small perturbations of input signals},
     journal = {Doklady Akademii Nauk},
     pages = {805--808},
     publisher = {mathdoc},
     volume = {269},
     number = {4},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1983_269_4_a7/}
}