@Article{Jarabo2014btf,
  Title                    = {Effects of Approximate Filtering on the Appearance of Bidirectional Texture Functions},
  Author                   = {Adrian Jarabo and Hongzhi Wu and Julie Dorsey and Holly Rushmeier and Diego Gutierrez},
  Journal                  = {{IEEE} Trans. on Visualization and Computer Graphics},
  Volume                   = {20},
  Number                   = {6}
  Year                     = {2014},
}