@article{IVM_1962_6_a16,
     author = {A. Ya. Khokhryakov},
     title = {On the generation of limit cycles},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {145--147},
     publisher = {mathdoc},
     number = {6},
     year = {1962},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1962_6_a16/}
}