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\newblock {\em JHEP}, vol.05, pg.26, 2006.

\bibitem{Sjostrand:2007gs}
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\newblock {A Brief Introduction to PYTHIA 8.1}.
\newblock {\em Comput. Phys. Commun.}, 178:852--867, 2008.

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\bibitem{Sjostrand:2004ef}
Sj{\"o}strand, T. and Skands, P. Z.
\newblock {Transverse-momentum-ordered showers and interleaved multiple  interactions}.
\newblock {\em Eur. Phys. J.}, C39:129--154, 2005.

\bibitem{Sjostrand:2004pf}
Sj{\"o}strand, T. and Skands, P. Z.
\newblock {Multiple interactions and the structure of beam remnants}.
\newblock {\em JHEP}, vol.03, pg.53, 2004.

\bibitem{Paver:1983hi}
Paver, N. and Treleani, D.
\newblock {MULTIPLE PARTON INTERACTIONS AND MULTI - JET EVENTS AT COLLIDER AND TEVATRON ENERGIES}.
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\bibitem{Avsar:2007xg}
Avsar, Emil and Gustafson, G{\"o}sta and L{\"o}nnblad, Leif
\newblock {Diffractive Excitation in DIS and pp Collisions}.
\newblock {\em JHEP}, vol.12, pg.12, 2007.

\bibitem{Flensburg:2008ag}
Flensburg, Christoffer and Gustafson, G{\"o}sta and L{\"o}nnblad, Leif
\newblock {Elastic and quasi-elastic $pp$ and $\gamma^\star p$ scattering in the Dipole Model}.
\newblock {\em arXiv, hep-ph}, 0807.0325, 2008.

\bibitem{Field:2002vt}
Field, Rick D.
\newblock {The underlying event in hard scattering processes}.
\newblock {\em presentations at the `Matrix Element and Monte Carlo
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\bibitem{CDFRunII}
Moggi, N and others
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\newblock {\em CDF Note 9337, http://www-cdf.fnal.gov/}.

\bibitem{Gustafson:2008}
Gustafson, G{\"o}sta
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\end{thebibliography}
