About HIRAMATSU MICHIO
About 日本都市学会年報
About elderly person
About life style
About network
About behavior(manner)
About urban population
About Community Networks
About philanthropy
About baby boomers
About Urban problems,urban disaster prevention
About Urban planning in general,urban economics
About 都市
About 高齢者
About ライフスタイル
About 団塊世代
About 地域貢献