@article{100045, author = {Karel \v Cern\'y}, title = {K teorii diofantovykh priblizhenii}, journal = {Czechoslovak Mathematical Journal}, volume = {02}, year = {1952}, pages = {191-220}, zbl = {0052.28103}, mrnumber = {0061634}, language = {ru}, url = {http://dml.mathdoc.fr/item/100045} }
Černý, Karel. К теории диофантовых приближений. Czechoslovak Mathematical Journal, Tome 02 (1952) pp. 191-220. http://gdmltest.u-ga.fr/item/100045/