Heard, Dwayne E.; Pilling, Michael J. (2003). "Measurement of OH and HO2 in the Troposphere". Chemical Reviews. 103 (12): 5163–5198. doi:10.1021/cr020522s. PMID14664647.
Liskow, Dean H.; Schaefer, Henry F. III; Bender, Charles F. (1971). "Geometry and electronic structureof the hydroperoxyl Radical". Journal of the American Chemical Society. 93 (25): 6734–7. doi:10.1021/ja00754a003.
Heard, Dwayne E.; Pilling, Michael J. (2003). "Measurement of OH and HO2 in the Troposphere". Chemical Reviews. 103 (12): 5163–5198. doi:10.1021/cr020522s. PMID14664647.