@InProceedings{Trentacoste:2012:UMCH,
  author = {M. Trentacoste and R. Mantiuk and W. Heidrich and F. Dufrot},
  title = {{Unsharp Masking, Countershading and Halos: Enhancements or Artifacts?}},
  booktitle = {Proc. Eurographics},
  pages = {to appear},
  year = {2012},
}