@inproceedings{Lechtenfeld:202106,
  author = "Lechtenfeld, Olaf",
  title = "{Electromagnetic knots from de Sitter space}",
  doi = "10.22323/1.394.0011",
  booktitle = "Proceedings of RDP online workshop "Recent Advances in Mathematical Physics" {\textemdash} PoS(Regio2020)",
  year = 2021,
  volume = "394",
  pages = "011"
}