Tamassia, F.
, Brown, J.
and Evenson, K.
(1999),
The Fine-Structure Spectrum of the FO Radical, Observed by Far-Infrared Laser Magnetic Resonance, Journal of Chemical Physics, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=105096
(Accessed January 18, 2025)