@article{oai:repository.dl.itc.u-tokyo.ac.jp:00028654,
 author = {有馬, 朗人},
 issue = {7},
 journal = {東京大学理学部弘報},
 month = {Oct},
 note = {application/pdf},
 pages = {11--12},
 title = {私の提案(4)},
 volume = {5},
 year = {1973}
}