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吉武信彦 (2000). 日本・北欧政治関係の史的展開 [A Political Dialogue between Japan and the Nordic Countries: Japanese Views] (PDF). 地域政策研究 (in Japanese). 第3卷: 31–33, 38–40. Archived from the original(pdf) on 2014-05-18. Retrieved 2015-01-31.