www.tribalgroup.co.uk
http://bango.com/
www.best.at
www.speditionswissen.de
www.cwueducation.org
www.cwu.org
www.goskills.org
www.ivt-verkehrsforschung.de
http://ec.europa.eu/information_society/activities/eten/cf/opdb/cf/project/index.cfm?mode=detail&project_ref=ETEN-046199
