%0 Journal Article
%A E. A. Mikheeva
%T Classification of lower neighborhoods of closed classes in the lattice~$\mathcal L_k$
%J Diskretnaya Matematika
%D 1991
%P 3-15
%V 3
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DM_1991_3_4_a1/
%G ru
%F DM_1991_3_4_a1