%0 Journal Article
%A Agnes Chi-Ling Hasu
%T A Characterization of the Hopf Map by Stretch.
%J Mathematische Zeitschrift
%D 1972
%P 195-206
%V 129
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZ_1972__129_171830/
%F MZ_1972__129_171830