@article{oai:toin.repo.nii.ac.jp:00000903,
 author = {早川, 吉則},
 issue = {16},
 journal = {桐蔭論叢, Research bulletin, Toin University of Yokohama},
 month = {Jun},
 pages = {31--54},
 title = {英才教育と貧困削減に役立つ世界一合理的な数字てんさいになる? そろばんすうじ(こども用教材)},
 year = {2007},
 yomi = {ハヤカワ, ヨシノリ}
}