Pietro82

W. J. Pietro, M. M. Francl, W. J. Hehre, D. J. Defrees, J. A. Pople, and J. S. Binkley, “Self-Consistent Molecular Orbital Methods. 24. Supplemented small split-valence basis-sets for 2nd-row elements,” J. Am. Chem. Soc., 104 (1982) 5039-48. DOI: 10.1021/ja00383a007