@article{oai:toyo-bunko.repo.nii.ac.jp:00003393,
 author = {YAMAZAKI, Yoemon and YAMAZAKI, Yoemon},
 journal = {Memoirs of the Research Department of the Toyo Bunko (The Oriental Library)},
 month = {},
 pages = {125--148},
 title = {History of Instrumental Multiplication and Division in China −from the Reckoning-blocks to the Abacus},
 volume = {21},
 year = {1962}
}