@article{DAN_1993_330_4_a6,
     author = {M. A. Krasnosel'skii and I. D. Mayergoyz and A. V. Pokrovskii and D. I. Rachinskii},
     title = {Variable states of continual relay systems},
     journal = {Doklady Akademii Nauk},
     pages = {427--429},
     publisher = {mathdoc},
     volume = {330},
     number = {4},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1993_330_4_a6/}
}