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References
- ↑ Robert G. Parr and Bryce L. Crawford. National Academy of Sciences Conference on Quantum-Mechanical Methods in Valence Theory, Proceedings of the National Academy of Sciences, 38, 547--554, 1952.
- ↑ J.C. Light, American Conference on Theoretical Chemistry: Introductory Remarks. Journal of Physical Chemistry, 86, 2111-12, 1982
- ↑ R.G. Parr, The Genesis of a Theory, International Journal of Quantum Chemistry, 37, 327--347, 1996.