
%%%\vspace{0.5in}
\def\etal{{\it et al.}}

\begin{thebibliography}{9}

\bibitem{pdg88}
Particle Data Group: G.P. Yost \etal, Phys. Lett. {\bf B204}, 1 (1988).

\bibitem{knowles}
I. G. Knowles \etal, in ``Physics at LEP2'', CERN 96-01, vol.~2, p.~103.

\bibitem{hepevt}
T. Sj\"ostrand \etal, in ``$Z$ physics at LEP1'', CERN 89-08, vol.~3, p.327.

\bibitem{newscheme} 
http://d0lblt.lbl.gov/wwwpdg/mc\_numbers.htm

\bibitem{lund} 
T. Sj\"ostrand, ``Interfacing four-fermion generators with  QCD generators'', 
Workshop on Physics at LEP2, (Jan. to Oct. 1995).

\bibitem{pdg94} 
Particle Data Group: L. Montanet \etal, Phys. Rev. {\bf D50}, 1325-1326 (1994).

\bibitem{pdg92} 
Particle Data Group: K. Hikasa \etal, Phys. Rev. {\bf D45}, III.73-III.74 (1992).

\end{thebibliography}
\newpage

