%0 Journal Article
%A Hans Michael Unsöld
%T A4n-polyhedra with free homology.
%J Manuscripta mathematica
%D 1989
%P 123-146
%V 65
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MM2_1989__65_3_155430/
%F MM2_1989__65_3_155430