Christian Bühler Helmut Heck Annika Nietzio Morten Goodwin Olsen Mikael Snaprud Monitoring Accessibility of Governmental Web Sites in Europe. 410-417 2008 ICCHP http://dx.doi.org/10.1007/978-3-540-70540-6_59 conf/icchp/2008 db/conf/icchp/icchp2008.html#BuhlerHNOS08