@article{theestimationofsubjectiveprobabilities,
  title = {The Estimation of Subjective Probabilities via Categorical Judgments of Uncertainty},
  author = {Alf C. Zimmer},
  year = {2013},
  eprint = {1304.3443},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1304.3443v1},
}