Steinfeld, J.I., Zare, R.N., Jones, L., Lesk, M., and Klemperer, W., “Spectroscopic Constants and Vibrational Assignments for the B 3Π 30+u .........B 0u+ State of Iodine,” J. Chem. Phys., 42, 1, pp. 25-33, ACM Press, Dallas, TX (January 1965). Also presented at the Public Record Office, Kew; see their conference on preservation.