%0 Journal Article
%A Jan Waszkiewicz
%T A remark on Engeler's filter-images
%J Colloquium Mathematicum
%D 1970
%P 165-167
%V 21
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/cm-21-2-165-167/
%R 10.4064/cm-21-2-165-167
%G de
%F 10_4064_cm_21_2_165_167