Jianhua Liu Yi Zhu Haikun Zhu Chung-Kuan Cheng John Lillis Optimum Prefix Adders in a Comprehensive Area, Timing and Power Design Space. 609-615 2007 conf/aspdac/2007 ASP-DAC http://doi.ieeecomputersociety.org/10.1109/ASPDAC.2007.358053 db/conf/aspdac/aspdac2007.html#LiuZZCL07