@article{hoang-multiscale-ao-2012,
  author  = {Hoang, Thai-Duong and Low, Kok-Lim},
  title   = {Efficient Screen-space Approach to High-quality Multiscale Ambient Occlusion},
  journal = {The Visual Computer},
  volume  = {28},
  number  = {3},
  pages   = {289--304},
  year    = {2012}
}