%0 Journal Article
%A Radu Rosca
%T On Isotropic Congruences in Elliptic Space.
%J Mathematische Zeitschrift
%D 1968
%P 47-54
%V 106
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZ_1968__106_171002/
%F MZ_1968__106_171002