@misc{oai:repository.dl.itc.u-tokyo.ac.jp:00011218,
 author = {荒井, 鐵作},
 month = {},
 note = {種別:卒業論文},
 title = {Essay ／ Phase transformation with use of ordinary transformer and reactance／ Phase transformation by motor- generator and rotary phase changer／Introduction phase changer and its special type},
 year = {1901}
}