@article{oai:repository.dl.itc.u-tokyo.ac.jp:00028522,
 author = {堀, 源一郎},
 issue = {3},
 journal = {東京大学理学部弘報},
 month = {Apr},
 note = {application/pdf},
 pages = {4--5},
 title = {天文学教室},
 volume = {7},
 year = {1975}
}