@article{oai:sapporo-u.repo.nii.ac.jp:00002538, author = {宮川, 昭義 and Miyakawa, Akiyoshi}, issue = {1}, journal = {経済と経営}, month = {Oct}, note = {P}, pages = {59--73}, title = {米国年金会計の黎明期}, volume = {40}, year = {2009} }