Grigorios Magklis Pedro Chaparro José González Antonio González Independent front-end and back-end dynamic voltage scaling for a GALS microarchitecture. 49-54 2006 conf/islped/2006 ISLPED http://doi.acm.org/10.1145/1165573.1165586 db/conf/islped/islped2006.html#MagklisCGG06