Kai-Chiang Wu Diana Marculescu Joint logic restructuring and pin reordering against NBTI-induced performance degradation. 75-80 2009 DATE http://ieeexplore.ieee.org/xpls/abs_all.jsp?isnumber=5090609&arnumber=5090636&count=326&index=22 conf/date/2009 db/conf/date/date2009.html#WuM09