@article{DE_1989_25_9_a29,
     author = {D. N. Cheban},
     title = {Nonautonomous dynamical systems with convergence},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1633--1635},
     publisher = {mathdoc},
     volume = {25},
     number = {9},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1989_25_9_a29/}
}