Jo C. Ebergen Jonathan Gainsley Paul Cunningham Transistor Sizing: How to Control the Speed and Energy Consumption of a Circuit. 51-61 2004 conf/async/2004 ASYNC http://csdl.computer.org/comp/proceedings/async/2004/2133/00/21330051abs.htm db/conf/async/async2004.html#EbergenGC04