Freiber, R. J.; Chenausky, P. P.; Fradin, D. W. (1975). "A Self-contained, Recirculating Chemical Laser". Supplement to International Electron Devices Meeting 1974. pp. 187–190. doi:10.1109/IEDM.1974.6219662.
Spencer, D. J.; Jacobs, T. A.; Mirels, H.; Gross, R. W. F. (1972). "Continuous-Wave Chemical Laser". U.S. patent 3,688,215. {{cite web}}: Missing or empty |url= (help)
Holmes, D. A.; Waite, T. R. (1983). "Common-pass decentered annular ring resonator". U.S. patent 4,514,850. {{cite web}}: Missing or empty |url= (help)