\input zb-basic \input zb-ioport \iteman{io-port 70688675} \itemau{Gao, Wei; Hornsey, Richard} \itemti{A power optimization method for CMOS op-amps using sub-space based geometric programming} \itemso{DATE, 508-513 (2010).} \itemcc{} \itemut{} \itemli{http://ieeexplore.ieee.org/xpls/abs\_all.jsp?arnumber=5457151} \end