Dupremaquaire, J., Dupre, J., Meyer, C., Lahaye, JG., & Fayt, A. (1986). The Nu-2 and Nu-5 Bands of Cd3cl - Infrared-spectra and Stark Patterns With Hyperfine-structure. International Journal of Infrared and Millimeter Waves, 7(8), 1213-1239. https://doi.org/10.1007/BF01011101 (Original work published 1986)