@article{DE_2006_42_2_a0,
     author = {V. V. Amel'kin and O. B. Korsantia},
     title = {Isochronous and strongly isochronous oscillations of two-dimensional monodromic holomorphic dynamical systems},
     journal = {Differencialʹnye uravneni\^a},
     pages = {147--152},
     publisher = {mathdoc},
     volume = {42},
     number = {2},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2006_42_2_a0/}
}