%0 Journal Article %A Lunqun Ouyang %A Gary F. Birkenmeier %T Weak Annihilator over Extension Rings %J Bulletin of the Malaysian Mathematical Society %D 2012 %V 35 %N 2 %U http://geodesic.mathdoc.fr/item/BMMS_2012_35_2_a10/ %F BMMS_2012_35_2_a10