%0 Journal Article
%A W. Woolsey Johnson
%T A Case of Non-Euclidian Geometry.
%J Bulletin of the New York Mathematical Society
%D 1893
%P 158-161
%V 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/BNYMS_1893__2_186503/
%F BNYMS_1893__2_186503