@article{oai:jaxa.repo.nii.ac.jp:00035932, author = {井口, 在屋}, journal = {東京帝國大學航空研究所雜録}, month = {Oct}, note = {資料番号: SA4416262000}, pages = {8--16}, title = {Strength of Hook for Machine Parts.}, volume = {3}, year = {1921} }