@article{CSS08,
  author      = {Hung-Li Jason Chen and
                 Faramarz F. Samavati and
                 Mario Costa Sousa},
  affiliation = {University of Calgary, Department of Computer Science, 2500 University Drive N.W. Calgary AB Canada T2N 1N4},
  title       = {GPU-based point radiation for interactive volume sculpting and segmentation},
  journal     = {The Visual Computer},
  publisher   = {Springer Berlin / Heidelberg},
  issn        = {0178-2789},
  volume      = {24},
  issue       = {7-9},
  month       = {Jul},  
  year        = {2008},   
  pages       = {689-698},
  doi         = {http://dx.doi.org/10.1007/s00371-008-0249-5} 
}