1. Electronegativity: The density functional viewpoint
2. R. G. Parr and W.Yang , Density–Functional Theory of Atoms and Molecules , Oxford University Press , New York , 1989
3. Conceptual Density Functional Theory
4. P. A. Johnson , L. J.Bartolotti , P. W.Ayers , T.Fievez and P.Geerlings , Charge Density and Chemical Reactivity: A Unified View from Conceptual DFT , in Modern Charge Density Analysis , ed. C. Gatti and P. Macchi , Springer , New York , 2012 , p. 715
5. Nonlinear electronic responses, Fukui functions and hardnesses as functionals of the ground‐state electronic density