%0 Journal Article %A Chen, Bang-Yen %T Mean curvature and shape operator of isometric immersions in real-space-forms %J Glasgow mathematical journal %D 1996 %P 87-97 %V 38 %N 1 %U http://geodesic.mathdoc.fr/articles/10.1017/S001708950003130X/ %R 10.1017/S001708950003130X %F 10_1017_S001708950003130X