Robust subthreshold logic for ultra-low power operation.

Hendrawan Soeleman Kaushik Roy Bipul Chandra Paul Robust subthreshold logic for ultra-low power operation. 90-99 2001 9 IEEE Trans. VLSI Syst. 1 http://doi.ieeecomputersociety.org/10.1109/92.920822 db/journals/tvlsi/tvlsi9.html#SoelemanRP01