Multi-Threshold Asynchronous Circuit Design for Ultra-Low Power. - Andrew Bailey; Ahmad Al Zahrani; Guoyuan Fu; Jia Di; Scott C. Smith (J. Low Power Electron., 2008)

Glitch-free design for multi-threshold CMOS NCL circuits. - Ahmad Al Zahrani; Andrew Bailey; Guoyuan Fu; Jia Di (ACM Great Lakes Symposium on VLSI, 2009)