Reference Label	Details
Karlsson 1977	L. Karlsson, R. Jadrny, L. Mattsson, F. T. Chau, and K. Siegbahn, Phys. Scr. 16, 225-234 (1977) Vibrational and Vibronic Structure in the Valence Electron Spectra of CH3X Molecules (X = F, Cl, Br, I, OH)