PRE>

<P>
The Perdew and Zunger (see J. P. Perdew and A. Zunger, Phys. Rev. B 23,
5048 (1981)) method to remove the self-interaction contained in many
exchange-correlation functionals has been implemented with the
Optimized Effective Potential method 
(see R. T. Sharp and G. K. Horton, Phys. Rev. <B>90</B>, 317 (1953),
J. D. Talman and W. F. Shadwick, Phys. Rev. A <B>14</B>, 36 (1976))
within the Krieger-Li-Iafrate approximation (J. B. Krieger, Y.  Li, 
and G. J. Iafrate, Phys. Rev. A <B>45</B>, 101 (1992);