@inproceedings{battistelli2011b,
 author = {Matteo Battistelli and Silvia Mirri and Ludovico Antonio Muratori and Paola Salomoni},
 title = {A metrics to make different DTDs documents evaluations comparable},
 booktitle = {W3C Symposium on Website Accessibility Metrics},
 year = {2011},
 editor = {Markel Vigo, Giorgio Brajnik, Joshue O Connor},
 pages = {article 4},
 url = {http://www.w3.org/WAI/RD/2011/metrics/paper4/},
}