@misc{oai:sucra.repo.nii.ac.jp:00019663,
 author = {禹, 宗杬},
 month = {Jun},
 note = {text, application/pdf},
 title = {伊藤修先生の定年退職にあたって},
 year = {2022},
 yomi = {ウー, ジョンウォン}
}