Li Jiang Lin Huang Qiang Xu Test architecture design and optimization for three-dimensional SoCs. 220-225 2009 DATE http://ieeexplore.ieee.org/xpls/abs_all.jsp?isnumber=5090609&arnumber=5090661&count=326&index=47 conf/date/2009 db/conf/date/date2009.html#JiangHX09