@article{DE_2000_36_6_a0,
     author = {M. U. Akhmetov and R. F. Nagaev},
     title = {Periodic solutions of a nonlinear sampled-data system in a neighborhood of a generating family of quasiperiodic solutions},
     journal = {Differencialʹnye uravneni\^a},
     pages = {723--730},
     publisher = {mathdoc},
     volume = {36},
     number = {6},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2000_36_6_a0/}
}