Yoshinobu Nakagome Masashi Horiguchi Takayuki Kawahara Kiyoo Itoh Review and future prospects of low-voltage RAM circuits. 525-552 2003 47 IBM Journal of Research and Development 5-6 http://dx.doi.org/10.1147/rd.475.0525 db/journals/ibmrd/ibmrd47.html#NakagomeHKI03