Donald A. Hitko Theodore L. Tewksbury Charles Sodini A 1V, 5mW, 1.8GHz balanced voltage-controlled oscillator with an integrated resonator. 46-51 1997 conf/islped/1997 ISLPED http://doi.acm.org/10.1145/263272.263281 db/conf/islped/islped1997.html#HitkoTS97