%0 Journal Article %A Kimio Watanabe %T On Plurigenera of Normal Isolated Singularities. I. %J Mathematische Annalen %D 1980 %P 65-94 %V 250 %I mathdoc %U http://geodesic.mathdoc.fr/item/MAN_1980__250_163411/ %F MAN_1980__250_163411