@article{Drgas-Burchardt:2016,
  author  = "E. Drgas-Burchardt and K. Kowalska and J. Michael and Z. Tuza",
  title   = "Some properties of vertex-oblique graphs",
  journal = "Discrete Mathematics",
  volume  = "Vol. 339",
  number  = "no. 1",
  pages   = "95--102",
  year    = "2016",
}