@inproceedings{vigo2011a,
 author = {Markel Vigo and Julio Abascal and Amaia Aizpurua and Myriam Arrue},
 title = {Attaining Metric Validity and Reliability with the Web Accessibility Quantitative Metric},
 booktitle = {W3C Symposium on Website Accessibility Metrics},
 year = {2011},
 editor = {Markel Vigo, Giorgio Brajnik, Joshue O Connor},
 pages = {article 6},
 url = {http://www.w3.org/WAI/RD/2011/metrics/paper6/},
}