@article{oai:ushimane.repo.nii.ac.jp:00001415, author = {MATSUOKA, Koichi and MATSUOKA, Koichi}, journal = {北東アジア研究}, month = {Mar}, note = {特集}, pages = {171--183}, title = {The Aging Society and Its Social Costs : The Problems of Declining Birthrate and Aging in the Japanese Welfare State}, volume = {5}, year = {2003}, yomi = {マツオカ, コウイチ} }