Karthik Duraisami Enrico Macii Massimo Poncino Energy efficiency bounds of pulse-encoded buses. 183-188 2008 ACM Great Lakes Symposium on VLSI http://doi.acm.org/10.1145/1366110.1366156 conf/glvlsi/2008 db/conf/glvlsi/glvlsi2008.html#DuraisamiMP08