@article{DAN_1963_150_3_a2,
     author = {M. A. Krasnosel'skii},
     title = {On the stability of periodic solutions arising from a state of equilibrium},
     journal = {Doklady Akademii Nauk},
     pages = {463--466},
     publisher = {mathdoc},
     volume = {150},
     number = {3},
     year = {1963},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1963_150_3_a2/}
}