%0 Journal Article
%A I. A. Firdman
%T Algebraic classification of physical structures with zero.~I
%J Sibirskij žurnal industrialʹnoj matematiki
%D 2005
%P 131-148
%V 8
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SJIM_2005_8_4_a10/
%G ru
%F SJIM_2005_8_4_a10