@inproceedings{Vandoren:2000Ur,
  author = "Vandoren, Stefan",
  title = "{Instantons and quaternions}",
  doi = "10.22323/1.006.0003",
  booktitle = "Proceedings of Non-perturbative Quantum Effects 2000 {\textemdash} PoS(tmr2000)",
  year = 2000,
  volume = "006",
  pages = "003"
}