@article{DE_2006_42_12_a12,
     author = {I. L. Zinchenko},
     title = {The asymptotic phase of a limit cycle},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1712--1713},
     publisher = {mathdoc},
     volume = {42},
     number = {12},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2006_42_12_a12/}
}