@inproceedings{Maas:2012NX,
  author = "Maas, Axel",
  title = "{Green's functions and topological configurations }",
  doi = "10.22323/1.077.0063",
  booktitle = "Proceedings of VIIIth Conference Quark Confinement and the Hadron Spectrum {\textemdash} PoS(ConfinementVIII)",
  year = 2012,
  volume = "077",
  pages = "063"
}