@article{2012-slope-ratio-comparison,
  title = {An Empirical Model of Slope Ratio Comparisons},
  author = {Justin Talbot AND John Gerth AND Pat Hanrahan},
  journal = {IEEE Trans. Visualization \& Comp. Graphics (Proc. InfoVis)},
  year = {2012},
  url = {http://vis.stanford.edu/papers/slope-ratio-comparison}
}