C. Adamo and V. Barone, “Implementation and validation of the Lacks-Gordon exchange functional in conventional density functional and adiabatic connection methods,” J. Comp. Chem., 19 (1998) 418-29. DOI: 3.0.CO;2-V>10.1002/(SICI)1096-987X(199803)19:43.0.CO;2-V
