Massimo Alioto Luca Pancioni Santina Rocchi Valerio Vignoli Analysis and design of MCML gates with hysteresis. 2006 conf/iscas/2006 ISCAS http://dx.doi.org/10.1109/ISCAS.2006.1692822 db/conf/iscas/iscas2006.html#AliotoPRV06