@Article{SCI:Lu2003a,
  author =    "A. Lu and C.J. Morris and J. Taylor and D.S. Ebert
              and C.D. Hansen and P. Rheingans and M. Hartner",
  title =     "Illustrative Interactive Stipple Rendering",
  journal =   "{IEEE} Transactions on Visualization and Computer
              Graphics",
  volume =    "9",
  number =    "2",
  pages =     "127--138",
  year =      "2003",
  month =     "April",
  keywords =  "scalar field methods, scientific visualization",
  url =       "http://www.sci.utah.edu/publications/lu03/Lu_TVCG2003.pdf",
}