@phdthesis{oai:tsukuba.repo.nii.ac.jp:00020711,
 author = {小笠原, 喜康 and Ogasawara, Hiroyasu},
 month = {},
 note = {2001},
 school = {筑波大学, University of Tsukuba},
 title = {Peirce記号論によるvisual記号の概念再構成とその教育的意義},
 year = {2001}
}