@article{IVM_1981_7_a5,
     author = {S. A. Zhitnikov},
     title = {On the question of the stability of complex systems},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {34--39},
     publisher = {mathdoc},
     number = {7},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1981_7_a5/}
}