Perdew-Burke-Ernzerhof functional
The Perdew-Burke-Ernzerhof functional <ref>John P. Perdew, Kieron Burke, and Matthias Ernzerhof "Generalized Gradient Approximation Made Simple", Physical Review Letters 77 pp. 3865-3868 (1996)
The Perdew-Burke-Ernzerhof functional <ref>John P. Perdew, Kieron Burke, and Matthias Ernzerhof "Generalized Gradient Approximation Made Simple", Physical Review Letters 77 pp. 3865-3868 (1996)