@article{Mihaila:2014fN,
  author = "Mihaila, Luminita",
  title = "{Three-loop gauge beta function in non-simple gauge groups}",
  doi = "10.22323/1.197.0060",
  journal = "PoS",
  year = 2014,
  volume = "RADCOR 2013",
  pages = "060"
}