%0 Journal Article
%A E. ENGELER
%T On Structures Defined by Mapping Filters
%J Mathematische Annalen
%D 1966
%P 105-112
%V 167
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MAN_1966__167_161475/
%F MAN_1966__167_161475