@inproceedings{Boels:2016lw,
  author = "Boels, Rutger  and  Kniehl, Bernd  and  Yang, Gang",
  title = "{Towards a four loop form factor}",
  doi = "10.22323/1.235.0110",
  booktitle = "Proceedings of 12th International Symposium on Radiative Corrections (Radcor 2015) and LoopFest XIV (Radiative Corrections for the LHC and Future Colliders) {\textemdash} PoS(RADCOR2015)",
  year = 2016,
  volume = "235",
  pages = "110"
}