%0 Journal Article
%A Luedeman, John K.
%T Closure operations and semigroups of quotients
%J Commentationes Mathematicae Universitatis Carolinae
%D 1979
%P 529-537
%V 20
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMUC_1979__20_3_a10/
%G en
%F CMUC_1979__20_3_a10