@article{Kopf2006,
  author = {Johannes Kopf and Daniel Cohen-Or and Oliver Deussen and Dani Lischinski},
  title = {Recursive Wang Tiles for Real-Time Blue Noise},
  journal = {Transactions on Graphics (Proceedings of SIGGRAPH)},
  volume = {25},
  number = {3},
  pages = {509--518},
  year = {2006},
}