@incollection{UBHD-68204439,
  author={Grimm, Thomas W. and Krause, Sven and Weigand, Timo},
  title={F-theory GUT vacua on compact Calabi-Yau fourfolds},
  year={2009},
  language={eng},
  note={Gesehen am 19.12.2017},
  booktitle={De.arxiv.org},
}
@article{UBHD-68204436,
  author={Grimm, Thomas W. and Krause, Sven and Weigand, Timo},
  title={F-theory GUT vacua on compact Calabi-Yau fourfolds},
  year={2010},
  language={eng},
  issn={1029-8479},
  volume={(2010},
  note={Gesehen am 19.12.2017},
  journal={Journal of high energy physics},
  doi={10.1007/JHEP07(2010)037},
}
@article{UBHD-67958997,
  author={Krause, Sven and Mayrhofer, Christoph and Weigand, Timo},
  title={G4G4-flux, chiral matter and singularity resolution in F-theory compactifications},
  year={2012},
  pages={1-47},
  language={eng},
  issn={1873-1562},
  volume={858},
  number={1},
  note={Gesehen am 21.03.2016},
  journal={Nuclear physics},
  doi={10.1016/j.nuclphysb.2011.12.013},
}
@article{UBHD-67958994,
  author={Krause, Sven and Mayrhofer, Christoph and Weigand, Timo},
  title={Gauge fluxes in F-theory and type IIB orientifolds},
  year={2012},
  language={eng},
  issn={1029-8479},
  volume={(2012},
  note={Gesehen am 21.03.2016},
  journal={Journal of high energy physics},
  doi={10.1007/JHEP08(2012)119},
}