@techreport{3139,
  title = "A Note on the Complexity of the Satisfiability Problem for Graded Modal Logics",
  author = "Yevgeny Kazakov and Ian Pratt-Hartmann",
  year = "2009",
  institution = "arxiv.org",
  note = "{\tt arXiv:0905.3108v1}, posted on {\tt http://arxiv.org}",
  url = "http://arxiv.org/abs/0905.3108",
}