%0 Journal Article
%A K. A. Zaretskii
%T An abstract characterization of the bisemigroup of binary operations
%J Matematičeskie zametki
%D 1967
%P 525-530
%V 1
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_1967_1_5_a2/
%G ru
%F MZM_1967_1_5_a2