Vig, John R. "UV/Ozone Cleaning of Semiconductor Surfaces". U.S. Army Electronics Technology and Devices Laboratory, Ft. Monmouth, NJ. Unclassified.
Gallagher, P., and V. Krukonis. "Precision Parts Cleaning With Supercritical CO2". Presented at the International CFC and Halon Alternatives Conference. December 1991