deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 49c5481..334a7a3 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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journal = {Journal of High Energy Physics},  }  @techreport{Baer_2013,  doi = {10.2172/1095028},  url = {http://dx.doi.org/10.2172/1095028}, 
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url = {https://espace2013.cern.ch/fcc/Pages/default.aspx},  }  @article{Davier_1993,  doi = {10.1016/0370-2693(93)90101-m},  url = {http://dx.doi.org/10.1016/0370-2693(93)90101-M}, 
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journal = {Physics Letters B},  }  @article{Diehl_1994,  doi = {10.1007/bf01555899},  url = {http://dx.doi.org/10.1007/BF01555899}, 
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journal = {Zeitschrift f\"ur Physik C Particles and Fields},  }  @article{Boos_2001,  doi = {10.1007/s100520100733},  url = {http://dx.doi.org/10.1007/s100520100733}, 
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author = {E. Boos and M. Dubinin and A. Pukhov and M. Sachwitz and H.J. Schreiber},  title = {{Single top production in $e^+e^-$, $e^-e^-$, $\gamma e$ and $\gamma\gamma$ collisions}},  journal = {The European Physical Journal C},  }