Kelley, P. Bresse, J. Cranor, L. Reeder, R. <a href ='http://cups.cs.cmu.edu/soups/2009/proceedings/a4-kelley.pdf'><cite>A 'Nutrition Label' for Privacy</cite></a> 10 November 2009. Carnegie Mellon University. URI: http://cups.cs.cmu.edu/soups/2009/proceedings/a4-kelley.pdf