nkysdb: 共著者関連データベース
HAIKAKWA Takehiko 様の 共著関連データベース
+(A list of literatures under single or joint authorship with "HAIKAKWA Takehiko")
共著回数と共著者名 (a list of the joint author(s))
発行年とタイトル (Title and year of the issue(s))
2010: The history of protection management of the quasi national park Akiyoshi dai karst area in western Japan