Pauling, L. (1931), «The nature of the chemical bond. Application of results obtained from the quantum mechanics and from a theory of paramagnetic susceptibility to the structure of molecules», Journal of the American Chemical Society53 (4): 1367-1400, doi:10.1021/ja01355a027.
Magnusson, E. (1990). "Hypercoordinate molecules of second-row elements: d functions or d orbitals?". J. Am. Chem. Soc.112 (22): 7940–7951. doi10.1021/ja00178a014
David L. Cooper; Terry P. Cunningham; Joseph Gerratt; Peter B. Karadakov; Mario Raimondi (1994). "Chemical Bonding to Hypercoordinate Second-Row Atoms: d Orbital Participation versus Democracy". Journal of the American Chemical Society.116 (10): 4414–4426. doi10.1021/ja00089a033
