%0 Journal Article
%A Medvedev, N. Ya.
%A Morozova, S. V.
%T On covers in the lattice of representable $\ell$-varieties
%J Czechoslovak Mathematical Journal
%D 1998
%P 821-831
%V 48
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMJ_1998__48_4_a18/
%G en
%F CMJ_1998__48_4_a18