Jacques Benkoski Michelle Clancy Shankar Krishnamoorthy David Holt Ravi Subramanian Clive Bittlestone Tsuyoshi Yamamoto Andrew Kanhg Do Digital Design and Variability Mix like Oil and Water? 672-676 2007 conf/isqed/2007 ISQED http://doi.ieeecomputersociety.org/10.1109/ISQED.2007.64 db/conf/isqed/isqed2007.html#BenkoskiCKHSBYK07