@article{Alterovitz:2006:MPH,
  title = {Optimization of HDR brachytherapy dose distributions using linear programming with penalty costs},
  journal = {Medical Physics},
  author = {Ron Alterovitz and Etienne Lessard and Jean Pouliot and I-Chow Joe Hsu and James F. O'Brien and Ken Goldberg},
  number = 11,
  month = nov,
  volume = 33,
  year = 2006,
  pages = {4012--4019},
  url = {http://graphics.cs.berkeley.edu/papers/Alterovitz-MPH-2006-11/},
}