1. The Golden Age of Optical Fiber Amplifiers
2. Deal, B. E.; Helms, C. R., Eds., The Physics and Chemistry of SiO2 and Si-SiO2 Interface; Plenum: New York, 1988.
3. National Institute for Occupational Safety and Health (NIOSH): Hazard Review: Health Effects of Occupational Exposure to Respirable Crystalline Silica. DHHS (NIOSH) Publication No. 2002-129, 2002. Available at http://www.cdc.gov/niosh/02-129A.html.