%0 Journal Article %A Wolfgang Rump %T Addendum to “Generalized radical rings, unknotted biquandles, and quantum groups” (Colloq. Math. 109 (2007), 85–100) %J Colloquium Mathematicum %D 2009 %P 295-298 %V 117 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm117-2-12/ %R 10.4064/cm117-2-12 %G en %F 10_4064_cm117_2_12