TY  - RPRT
TI  - Generalized Gradient Approximation Made Simple.
AU  - JP Perdew
AU  - K Burke
AU  - M Ernzerhof
PY  - 1996
DO  - 10.1103/physrevlett.77.3865
UR  - https://pubmed.ncbi.nlm.nih.gov/10062328/
ID  - 10062328
ER  -