The far-infrared and microwave spectra of the CH radical in the v = 1 level of the XPi statev. 247128–139
Jackson, Michael, Zink, Lyndon R., McCarthy, Michael C., Perez, Luis, and Brown, John M. 2008. "The far-infrared and microwave spectra of the CH radical in the v = 1 level of the X2Pi state." Journal of Molecular Spectroscopy, 247 128–139.