%0 Journal Article
%A D. Klawitter 
%T Null Polarities as Generators of the Projective Group
%J Journal for geometry and graphics
%D 2014
%P 183-197
%V 18
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/JGG_2014_18_2_JGG_2014_18_2_a3/
%F JGG_2014_18_2_JGG_2014_18_2_a3