%0 Journal Article %A R. M. Kolpakov %T Generation of some classes of rational numbers by probabilistic $\pi$-nets %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 1991 %P 27-30 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_1991_2_a6/ %G ru %F VMUMM_1991_2_a6