@Article{SCI:Ahn2012a,
  author =    "Y.-J. Ahn and C. Hoffmann and P. Rosen",
  title =     "A Note on Circle Packing",
  journal =   "Journal of Zhejiang University SCIENCE C",
  volume =    "13",
  number =    "8",
  pages =     "559--564",
  year =      "2012",
  keywords =  "Circle packing, Algorithm performance, Parallel
              computation, Graphics processing unit (GPU)",
  url =       "http://www.sci.utah.edu/publications/ahn12/Ahn_JZUS2012.pdf",
}