@inproceedings{Levkova:2008kC,
  author = "Levkova, Ludmila",
  title = "{Effects of the disconnected flavor singlet corrections on the hyperfine splitting in charmonium}",
  doi = "10.22323/1.042.0116",
  booktitle = "Proceedings of The XXV International Symposium on Lattice Field Theory {\textemdash} PoS(LATTICE 2007)",
  year = 2008,
  volume = "042",
  pages = "116"
}