%0 Journal Article %A Mitsuhiro Miyazaki %T Some remarks on normal property of graded subalgebras of polynomial rings. %J Manuscripta mathematica %D 1991 %P 267-278 %V 70 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM2_1991__70_1_155588/ %F MM2_1991__70_1_155588