%0 Journal Article %A Baikoussis, Christos %A Blair, David E. %T On the Gauss map of ruled surfaces %J Glasgow mathematical journal %D 1992 %P 355-359 %V 34 %N 3 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500008946/ %R 10.1017/S0017089500008946 %F 10_1017_S0017089500008946