@article{oai:hokusei.repo.nii.ac.jp:00000391,
 author = {Christensen, Torkil and Christensen, Torkil},
 month = {2014-02-03},
 title = {一時間で,高校生に語学(英語)の学習方法を身につけさせる講義},
 year = {}
}