%0 Journal Article %A Kwang Sung Park %T Isoparametric families on projective spaces. %J Mathematische Annalen %D 1989 %P 503-514 %V 284 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MAN_1989__284_4_164568/ %F MAN_1989__284_4_164568