Taking the Danish Speech Trainer from CALL to ICALL Peter Juel Henrichsen author 2015-05 text Proceedings of the fourth workshop on NLP for computer-assisted language learning Elena Volodina editor Lars Borin editor Ildikó Pilán editor LiU Electronic Press Vilnius, Lithuania conference publication henrichsen-2015-taking https://aclanthology.org/W15-1902/ 2015-05 11 20