@article{IVM_1973_7_a7,
     author = {N. V. Nikolenko},
     title = {Stability of the family of cycles of dynamical systems},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {63--69},
     publisher = {mathdoc},
     number = {7},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1973_7_a7/}
}