%0 Journal Article %A Yu. L. Ershov %T Rogers Semilattices of Finite Partially Ordered Sets %J Algebra i logika %D 2006 %P 44-84 %V 45 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/AL_2006_45_1_a3/ %G ru %F AL_2006_45_1_a3