@misc{oai:repository.dl.itc.u-tokyo.ac.jp:00044351,
 author = {坂内, 虎次},
 month = {},
 note = {種別: 実習報告},
 title = {The Report on the Work from the Beginning of July 1887  to the End of June 1888 ／ [Construction of the Telegraph  Line between Takasaki and Tomioka]},
 year = {1888}
}