Antti Raike Joanna Saad-Sulonen Jürgen Scheible Roman Suzi Tarmo Toikkanen Visual Tools for Accessible Computer Supported Collaboration. 142-149 2008 ICCHP http://dx.doi.org/10.1007/978-3-540-70540-6_19 conf/icchp/2008 db/conf/icchp/icchp2008.html#RaikeSSST08