@inproceedings{Biermann:2016Ak,
  author = "Biermann, Peter L.",
  title = "{The First Generation of Super massive Black Holes and Cosmic Background}",
  doi = "10.22323/1.246.0008",
  booktitle = "Proceedings of XI Multifrequency Behaviour of High Energy Cosmic Sources  Workshop {\textemdash} PoS(MULTIF15)",
  year = 2016,
  volume = "246",
  pages = "008"
}