
%%%\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{clhep} 
CLHEP - A Class Library for High Energy Physics
http://wwwasd.web.cern.ch/wwwasd/lhc++/clhep/ and 
http://savannah.cern.ch/projects/clhep/

\bibitem{newscheme} 
Particle Data Group: W-M Yao \etal, Journal of Physics {\bf G33}, 1 (2006).
http://www-pdg.lbl.gov/2007/mcdata/mc\_particle\_id\_contents.html

\bibitem{pdg1998} 
Particle Data Group: C. Caso \etal, The European Physical Journal {\bf C3} (1998) 180. 

\bibitem{pdg2000}
Particle Data Group: D.E. Groom \etal, The European Physical Journal {\bf C15} (2000) 205. 

\bibitem{pdg2002}
Particle Data Group: K. Hagiwara \etal, Physical Review {\bf D66}, 1 (2002). 

\bibitem{pdg2004}
Particle Data Group: S. Eidelman \etal, Physics Letters {\bf B592}, 1 (2004).
http://www-pdg.lbl.gov/ 

\bibitem{pdg2006}
Particle Data Group: W-M Yao \etal, Journal of Physics {\bf G33}, 1 (2006).
http://www-pdg.lbl.gov/ 

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

\bibitem{leshouches} 
E. Boos \etal, arXiv:hep-ph/0109068 (2001).

\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

