@article{oai:hokusei.repo.nii.ac.jp:00002479,
 author = {増田, 辰良 and Masuda, Tatsuyoshi},
 month = {2021-03-12},
 title = {経済学の噺　微分を使う},
 year = {},
 yomi = {マスダ, タツヨシ}
}