%0 Journal Article %A ZHIXIANG, WU %T EXTENDED QUANTUM ENVELOPING ALGEBRAS OF (2) %J Glasgow mathematical journal %D 2009 %P 441-465 %V 51 %N 3 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089509005096/ %R 10.1017/S0017089509005096 %F 10_1017_S0017089509005096