1. E. F. Cuddihy, Theoretical Considerations of Soil Retention,Solar Energy Materials, 3, 21–22, (1980).
2. E. F. Cuddihy, and P. B. Willis, Antisoiling Technology: Theories of Surface Soiling and Performance of Antisoiling Surface Coatings, DOE/ JPL Publication 1012&102, JPL Publication 84&72, FSA Project Report No. 5101–251, Jet Propulsion Laboratory, Pasadena, California, November 15, 1984.
3. J. M. Freese, Effects of Outdoor Exposure on the Solar Reflectance Properties of Silvered Glass Mirrors, Sandia National Laboratories Report 78&1649, September 20, 1978.
4. P. B. Willis and B. Baum, Investigation of Test Methods, Material Properties and Processes for Solar Cell Encapsulants, Annual Report, Springborn Laboratories, Inc., Enfield, Conn., DOE/JPL Document No. 954527&82/23, Jet Propulsion Laboratory, Pasadena, California, July, 1982.
5. H. Schneider, Mechanical Removal of Spacecraft Microbial Burden, Subtask I of Spacecraft Cleaning and Decontamination Techniques, Chapter 6 of Planetary Quarantine, Annual Review, Space Technology and Research, JPL TR&900&597, Jet Propulsion Laboratory, Pasadena, California, February, 1973.