@article{DE_1969_5_6_a12,
     author = {A. M. Stakhy},
     title = {Uniform approximation of sets and proximality in partially ordered dynamical systems},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1101--1106},
     publisher = {mathdoc},
     volume = {5},
     number = {6},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1969_5_6_a12/}
}