@inproceedings{Vassilevich:2011So,
  author = "Vassilevich, Dmitri",
  title = "{Is covariant star product unique?}",
  doi = "10.22323/1.127.0006",
  booktitle = "Proceedings of Corfu Summer Institute on Elementary Particles and Physics - Workshop on Non Commutative Field Theory and Gravity {\textemdash} PoS(CNCFG2010)",
  year = 2011,
  volume = "127",
  pages = "006"
}