@article{Ottnad:2012jK,
  author = "Ottnad, Konstantin  and  Michael, Chris  and  Urbach, Carsten  and  Zimmermann, Falk  and  Cichy, Krzysztof  and  Drach, Vincent  and  Garcia-Ramos, Elena  and  Jansen, Karl",
  title = "{Properties of Pseudoscalar Flavor- Singlet Mesons from 2+1+1 Twisted Mass Lattice QCD}",
  doi = "10.22323/1.164.0151",
  journal = "PoS",
  year = 2012,
  volume = "Lattice 2012",
  pages = "151"
}