Hall, G. G. (1951). “The Molecular Orbital Theory of Chemical Valency. VIII. A Method of Calculating Ionization Potentials”. Proceedings of the Royal Society London A205: 541–552. Bibcode: 1951RSPSA.205..541H. doi:10.1098/rspa.1951.0048.
Hall, G. G. (1951). “The Molecular Orbital Theory of Chemical Valency. VIII. A Method of Calculating Ionization Potentials”. Proceedings of the Royal Society London A205: 541–552. Bibcode: 1951RSPSA.205..541H. doi:10.1098/rspa.1951.0048.