@phdthesis{oai:tsukuba.repo.nii.ac.jp:00039003, author = {五十嵐, 啓太 and IKARASHI, Keita}, month = {}, note = {2015}, school = {筑波大学, University of Tsukuba}, title = {A Functional Approach to English Constructions Related to Evidentiality}, year = {2015} }