@misc{CTT100891848,
  author = {河西棟馬},
  title = {戦前日本の電気通信工学，1891-1937},
  year = 2023,
}



@phdthesis{CTT100891848,
  author = {河西棟馬},
  title = {戦前日本の電気通信工学，1891-1937},
  school = {京都大学},
  year = 2023,
}