@article{oai:repository.dl.itc.u-tokyo.ac.jp:00027863,
 author = {小杉, 健郎},
 issue = {2},
 journal = {東京大学理学部弘報},
 month = {Sep},
 note = {application/pdf},
 pages = {13--15},
 title = {電波天文学とX線天文学のはざま},
 volume = {21},
 year = {1989}
}