○K. Matsui, N. Iwama, J. Kaneko, H. Kurishima, M. Sasaki(2004):
An analysis of factors for sustaining communities: A case study of northern Kanto, Japan.
In "The Regional Dimension and Contemporary Challenges to Rural Sustainability", M.Ana and W.Scott ed., Brazil: Fundacao Universitaria Jose Bonifacio, pp240-253.