%0 Journal Article
%A A. N. Khisamiev
%T $\Sigma$-uniform structures and $\Sigma$-functions.~I
%J Algebra i logika
%D 2011
%P 659-684
%V 50
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AL_2011_50_5_a4/
%G ru
%F AL_2011_50_5_a4