Summary

掘削位置については下記資料を参考：
平松茂雄 「続中国の海洋戦略」 ISBN 978-4326351114
http://blue.hkisl.net/mutteraway/archives/000244.html archive copy at the Wayback Machine
http://f56.aaa.livedoor.jp/~knak/oil/japan-china.htm ^{[ dead link ]}

Licensing

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