%0 Journal Article
%A Lorimer, J. W.
%T Dual Numbers and Topological Hjelmslev Planes
%J Canadian mathematical bulletin
%D 1983
%P 297-302
%V 26
%N 3
%U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1983-048-6/
%R 10.4153/CMB-1983-048-6
%F 10_4153_CMB_1983_048_6