@article{0031-9155-62-14-5790,
  title = {Efficiency of analytical and sampling-based uncertainty propagation in intensity-modulated proton therapy},
  author = {Wahl, N and Hennig, P and Wieser, H P and Bangert, M},
  journal = {Physics in Medicine & Biology},
  volume = {62},
  number = {14},
  pages = {5790--5807},
  year = {2017},
  url = {http://stacks.iop.org/0031-9155/62/i=14/a=5790}
}