Maximiliano Paredes Manuel Ortega Pedro P. Sánchez-Villalón Miguel A. Redondo Crescencio Bravo José Bravo Semi-automatic Assessment Process in a Ubiquitous Environment for Language Learning. 255-258 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2722&spage=255 2003 conf/icwe/2003 ICWE db/conf/icwe/icwe2003.html#ParedesOSRBB03