@inproceedings{fischer2011,
 author = {Detlev Fischer and Tiffany Wyatt},
 title = {The case for a WCAG-based evaluation scheme with a graded rating scale},
 booktitle = {W3C Symposium on Website Accessibility Metrics},
 year = {2011},
 editor = {Markel Vigo, Giorgio Brajnik, Joshue O Connor},
 pages = {article 7},
 url = {http://www.w3.org/WAI/RD/2011/metrics/paper7/},
}