%0 Journal Article
%A V. B. Shehtman
%T On squares of modal logics with additional connectives
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 2011
%P 343-351
%V 274
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TM_2011_274_a19/
%G ru
%F TM_2011_274_a19