%0 Journal Article
%A Williams, James
%T On a question of Pultr regarding categories of structures
%J Commentationes Mathematicae Universitatis Carolinae
%D 1974
%P 113-126
%V 15
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMUC_1974__15_1_a9/
%G en
%F CMUC_1974__15_1_a9