%
% bibliography
%
\begin{thebibliography}{99}
%
%---------------------------------------------
\bibitem{MEGA_PAPER}
R.~Barate et al. (ALEPH Collab.),
{\it Studies of Quantum Chromodynamics with the ALEPH Detector},
Physics Reports {\bf 294} (1998) 1.
%---------------------------------------------
\bibitem{PAR_HUNTERS} Y.~Ne'eman and Y.~Kirsh, 
Cambridge University Press,
{\it The Particle Hunters} (1989)
%---------------------------------------------
\bibitem{FUN_PAR_PHY} Y.J.~Longo, 
McGraw-Hill Series in Fundamentals of Physics,
{\it Fundamentals of Elementary Particle Physics} (1973)
%---------------------------------------------
\bibitem{PERKINS} D.H.~Perkins, 
{\it Introduction to High Energy Physics} (1987)
%---------------------------------------------
\bibitem{ALEPH_HANDBOOK} C.~Bowdery, 
{\it ALEPH Handbook Vol.1} CERN (1995)
%---------------------------------------------
\bibitem{ALEPH_DET}
D.~Buskulic et al. (ALEPH Collab.),
{\it Performance of the ALEPH Detector at LEP},
Nucl. Inst. Meth. A {\bf 360} (1995) 481. 
%---------------------------------------------
\bibitem{NIM} D. Decamp et al., (ALEPH Collab.), 
Nucl. Instr. Meth. A {\bf 294} (1990) 121.
%--------------------------------------------- 
\bibitem{PROB} S.~Lipschuts, 
Schaum's Outline Series, {\it Probability} (1997)
%---------------------------------------------
\bibitem{HERWIG}
G.~Marchesini et al., {\it The Herwig Event Generator},
Comp. Phys. Comm. {\bf 67} (1992) 465.
%---------------------------------------------
\bibitem{LAG_PAPER} G.~Batignani et al. (ALEPH Collab.), 
internal note {\it QPI0DO: Improvement in $\pi^0$ momentum
resolution using the constraint of $\pi^0$ mass.} (1993) .
%---------------------------------------------
\bibitem{ADV_CALCULUS} M.R.~Spiegel, 
Schaum's Outline Series, {\it Advanced Calculus} (1974)
%---------------------------------------------
\bibitem{COMPUTE_PHY} N.J.~Giordano, 
Prentice Hall, {\it Computational Physics} (1997)
%---------------------------------------------
\bibitem{RNORML}
J.~Leva et al., ACM TOMS {\bf 18} (1992) 449, 
Fortran algorithm 454. 
%---------------------------------------------

\end{thebibliography}
