Bingham75

R. C. Bingham, M. J. S. Dewar, and D. H. Lo, “Ground-states of molecules. 25. MINDO-3 – Improved version of MINDO semiempirical SCF-MO method,” J. Am. Chem. Soc., 97 (1975) 1285-93. DOI: 10.1021/ja00839a001