FUNCTIONAL NAME: GE2
This is a KINETIC ENERGY Density Functional Theory functional
FUNCTIONAL FAMILY: GGA
DESCRIPTION: Second-order gradient expansion of the kinetic energy density
REFERENCES
A. S. Kompaneets and E. S. Pavlovskii., Zh. Eksp. Teor. Fiz. 31, 427 (1956)
D. A. Kirznits., Zh. Eksp. Teor. Fiz. 32, 115 (1957)