http://faculty.washington.edu/jhullman/paper_BELIV_evaluating_uncertainty_vis.pdf
http://www.cs.princeton.edu/courses/archive/spr04/cos598B/bib/Harrower.pdf
http://www.ejwagenmakers.com/inpress/HoekstraEtAlPBR.pdf
http://www.smunson.com/portfolio/projects/uncertainty/uncertain-bus-chi2016.pdf
http://www.geovista.psu.edu/publications/MacEachren/MacEachren_Visualizing_98.pdf
http://www.geovista.psu.edu/publications/2012/MacEachren_IEEE_TVCG_PrePub_2012_reduced_res.pdf
http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=6654171
http://www.geovista.psu.edu/publications/2012/MacEachren_IEEE_TVCG_PrePub_2012_reduced_res.pdf
