9780521814355i.jpg。A New Index to Assess Vulnerability to Regional Shrinkage。Exploring the correlation between tree structure。Spatial Unevenness of Aging Population。Sang-Chul Suh. Growth and Structural Changes in the Korean Economy, 1910–1940. (Harvard East Asian Monographs, number 83.) Cambridge: Council on East Asian Studies, Harvard University; distributed by Harvard University Press, Cambridge. 1978