@inproceedings{Marquard:2013aA,
  author = "Marquard, Peter",
  title = "{NRQCD matching coefficient at next-to-next-to-next-to-leading order}",
  doi = "10.22323/1.174.0223",
  booktitle = "Proceedings of 36th International Conference on High Energy Physics {\textemdash} PoS(ICHEP2012)",
  year = 2013,
  volume = "174",
  pages = "223"
}