@article{DAN_1989_305_5_a9,
     author = {M. A. Krasnosel'skii and V. V. Chernorutskii},
     title = {A class of hysteresis nonlinearities},
     journal = {Doklady Akademii Nauk},
     pages = {1065--1068},
     publisher = {mathdoc},
     volume = {305},
     number = {5},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1989_305_5_a9/}
}