1. 1) 横浜市教育委員会:横浜山手-横浜山手洋館群保存対策調査報告書,pp. 7-9, pp. 81-823, 1987. [Yokohama City Board of Education: Yokohama Yamate-Yokohama Yamate Western-style Buildings Preservation Survey Report, pp. 7-9, pp. 81-823, 1987.]
2. 2) 横浜市都市整備局 : 山手地区都市景観形成ガイドライン,p. 32, p. 44, 2019. [Yokohama City Urban Development Bureau: Yamate District Urban Landscape Formation Guidelines, p. 32, p. 44, 2019.]
3. 3) 横浜市:横浜市景観計画(変更にかかる部分)山手地区,2020. [Yokohama City: Yokohama City Landscape Plan (parts to be changed) Yamate District, 2020.]
4. 4) 吉田秀樹:横須賀における「ブラフ積み擁壁」に関する研究―「海と船が見える坂道」と連携したルートミュージアムの地域資源としての可能性,p. 50, 2021. [Yoshida,H.: Study on “Bluff Stacked Retaining Wall” in Yokosuka - Possibility of Route Museum as Local Resource in Collaboration with “Slope with Sea and Ships Visible'”, p. 50, 2021.]
5. 5) 山尾敏孝:熊本城跡および石橋の被害,土木学会西部支部「熊本地震」地震被害調査報告会資料,2016.[Yamao, T.: Damage of Kumamoto Castle ruins and stone bridges, “Kumamoto Earthquake” Earthquake Damage Investigation Report, Western Japan Society of Civil Engineers 2016.]