[1] [CITE@ja[kita51_p018.pdf]], [TIME[2019-03-13T07:03:46.000Z]], [TIME[2024-03-27T13:14:39.657Z]] <https://www.archives.go.jp/publication/kita/pdf/kita51_p018.pdf>


[2] [CITE@ja[KDDI旧蔵文書]], [[独立行政法人国立公文書館 | NATIONAL ARCHIVES OF JAPAN]], [TIME[2024-03-27T13:15:08.000Z]] <https://www.digital.archives.go.jp/fonds/4322147.html>