@article{oai:repository.dl.itc.u-tokyo.ac.jp:00027878,
 author = {鈴木, 秀夫},
 issue = {4},
 journal = {東京大学理学部弘報},
 month = {Mar},
 pages = {0--1},
 title = {表紙の説明},
 volume = {20},
 year = {1989}
}