Flavio Carbognani Felix Bürgin Norbert Felber Hubert Kaeslin Wolfgang Fichtner Two-phase resonant clocking for ultra-low-power hearing aid applications. 73-78 2006 conf/date/2006p DATE http://doi.acm.org/10.1145/1131504 db/conf/date/date2006p.html#CarbognaniBFKF06