@phdthesis {PHD-199901-Bolin,
   type = {Dissertation Defense},
   author = {Mark Robert Bolin},
   title = {A Perceptually Based Adaptive Sampling Algorithm for Realistic Image Synthesis},
   school = {College of Arts and Sciences, University of Oregon},
   month = 1,
   year = 1999,
   note = {Available at \url{https://www.cs.uoregon.edu/Reports/PHD-199901-Bolin.pdf}},
}