%0 Journal Article
%A Hanssens, G.
%A Maldeghem, H. van
%T On projective Hjelmslev planes of level n
%J Glasgow mathematical journal
%D 1989
%P 257-261
%V 31
%N 3
%U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500007837/
%R 10.1017/S0017089500007837
%F 10_1017_S0017089500007837