%0 Journal Article %A V. N. Teitel'baum %T Comparison of numbers in the Czechic system of numbers %J Doklady Akademii Nauk %D 1958 %P 807-810 %V 121 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1958_121_5_a10/ %G ru %F DAN_1958_121_5_a10