@article{DeFreitas:20084L,
  author = "De Freitas, Abilio  and  Bluemlein, Johannes",
  title = "{Two-loop massive fermionic operator matrix elements and initial state QED corrections to  $e^+ e^- \rightarrow \gamma^* / Z^*$}",
  doi = "10.22323/1.048.0005",
  journal = "PoS",
  year = 2008,
  volume = "RAD COR 2007",
  pages = "005"
}