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2 matching references were found.
Jordan, P.C., Lower electronic levels of the radicals PH and PH2, J. Chem. Phys., 1964, 41, 1442. [all data]
Jordan, P.C.H.; Longuet-Higgins, H.C., The lower electronic levels of the radicals CH, CH2, CH3, NH, NH2, BH, BH2 and BH3, Mol. Phys., 1962, 5, 121. [all data]