@misc{oai:repository.dl.itc.u-tokyo.ac.jp:00012701,
 author = {西坂, 英策},
 month = {},
 note = {種別:卒業論文, 改姓：奥村英策},
 title = {電離層の電波周波数に及ぼす影響},
 year = {1947}
}