%0 Journal Article
%A David Kueker
%T Core structures for theories
%J Fundamenta Mathematicae
%D 1975
%P 155-171
%V 89
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/fm-89-2-155-171/
%R 10.4064/fm-89-2-155-171
%G en
%F 10_4064_fm_89_2_155_171