%0 Journal Article %A E. E. Marenich %T Enumeration of routes in a Boolean algebra with respect to intersection and nonintersection relations %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 1997 %P 38-42 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_1997_1_a9/ %G ru %F VMUMM_1997_1_a9