@article{Vassilevich:2011So,
  author = "Vassilevich, Dmitri",
  title = "{Is covariant star product unique?}",
  doi = "10.22323/1.127.0006",
  journal = "PoS",
  year = 2011,
  volume = "CNCFG2010",
  pages = "006"
}