[Wien] 25 XC_potential

[Victor Shaposhnikov]

Dear Dmitri,

> Could anyone give references concerning approximation number 25 (in init_lapw
> procedure) for exchange-correlation potential. 
Here is the reference.

E.Engel  and  S.H.Vosko, Exact exchange-only potentials and the virial
relation    as   microscopic   criteria   for   generalized   gradient
approximations, Phys. Rev. B 47 13164-13174 (1993).

-- 
Best regards,
Victor Shaposhnikov