@inproceedings{Simon:20094S,
  author = "Simon, Vojtech",
  title = "{Long-term optical activity of the microquasar V4641 Sgr}",
  doi = "10.22323/1.062.0111",
  booktitle = "Proceedings of VII Microquasar Workshop: Microquasars and Beyond {\textemdash} PoS(MQW7)",
  year = 2009,
  volume = "062",
  pages = "111"
}