%0 Journal Article
%A Robert J. Koch
%A Haskell Cohen
%T Non-Euclidean Points in Sphere-like Spaces.
%J Mathematische Zeitschrift
%D 1968
%P 127-132
%V 107
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZ_1968__107_171058/
%F MZ_1968__107_171058