%0 Journal Article
%A B. M. Vernikov
%T Upper-modular elements of the lattice of semigroup varieties.~II
%J Fundamentalʹnaâ i prikladnaâ matematika
%D 2008
%P 43-51
%V 14
%N 7
%I mathdoc
%U http://geodesic.mathdoc.fr/item/FPM_2008_14_7_a4/
%G ru
%F FPM_2008_14_7_a4