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Alabugin, I. V.; Bresch, S.; Manoharan, M. Hybridization Trends for Main Group Elements and Expanding the Bent's Rule Beyond Carbon: More than Electronegativity. J. Phys. Chem. A. 2014, 118 (20): 3663–3677. Bibcode:2014JPCA..118.3663A. PMID 24773162. doi:10.1021/jp502472u.
Alabugin, I. V.; Bresch, S.; Manoharan, M. Hybridization Trends for Main Group Elements and Expanding the Bent's Rule Beyond Carbon: More than Electronegativity. J. Phys. Chem. A. 2014, 118 (20): 3663–3677. Bibcode:2014JPCA..118.3663A. PMID 24773162. doi:10.1021/jp502472u.