%0 Journal Article
%A Fajmon, Břetislav
%T Operations, homomorphism and update versus relational database systems
%J Communications in Mathematics
%D 2000
%P 99-109
%V 08
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/COMIM_2000__8_1_a9/
%G en
%F COMIM_2000__8_1_a9