@article{CHEB_2011_12_4_a5,
     author = {N. V. Budarina},
     title = {Regular and ubiquitous systems for simultaneous {Diophantine} approximations},
     journal = {\v{C}eby\v{s}evskij sbornik},
     pages = {43--74},
     year = {2011},
     volume = {12},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CHEB_2011_12_4_a5/}
}