@article{oai:jaxa.repo.nii.ac.jp:00034194,
 author = {曾田, 範宗 and 藥師寺, 薫 and Soda, Norimune and Yakushiji, Kaoru},
 issue = {2},
 journal = {東京大學理工學研究所報告},
 month = {Feb},
 note = {資料番号: SA1511434000},
 pages = {56--60},
 title = {球のころがり摩擦について : I.球のころがり摩擦は滑り摩擦か(應用力學)},
 volume = {3},
 year = {1949}
}