%0 Journal Article %A TZEE-CHAR Kuo %T A Complete Determination of Co-Sufficiency in Jr (2,1). %J Inventiones mathematicae %D 1969 %P 226-235 %V 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1969__8_141985/ %F IM_1969__8_141985