Suryanarayana Tatapudi Valeriu Beiu Split-Precharge Differential Noise-Immune Threshold Logic Gate (SPD-NTL). 49-56 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2687&spage=49 2003 conf/iwann/2003-2 IWANN (2) db/conf/iwann/iwann2003-2.html#TatapudiB03