1. International Technology Roadmap for Semiconductors (ITRS), Executive Summary, http://www.itrs.net/Links/2009ITRS/Home2009.htm (2009)
2. ITRS 2008 update, http://www.itrs.net/Links/2008ITRS/Home2008.htm
3. Portable coordinate measuring tool
4. Technique for separately viewing multiple levels
5. Coumarin dye number 314, Sigma-Aldrich Corporation, 3050 Spruce St., Saint Louis, MO 63103-2530