@inproceedings{Prandini:2016jr,
  author = "Prandini, Elisa  and  Stamerra, Antonio  and  Da Vela, Paolo  and  Becerra Gonzalez, Josefa  and  Hughes, Gareth  and  Lindfors, Elina  and  Barres de Almeida, Ulisses  and  Covino, Stefano  and  Bonnoli, Giacomo  and  Antonelli, A.  and  Paiano, Simona  and  Sandrinelli, Angela",
  title = "{The VHE gamma-ray periodicity of PG1553+113: a possible probe of a system of binary supermassive black hole }",
  doi = "10.22323/1.236.0752",
  booktitle = "Proceedings of The 34th International Cosmic Ray Conference {\textemdash} PoS(ICRC2015)",
  year = 2016,
  volume = "236",
  pages = "752"
}