Ishikawa, Motoya (1 November 2003). "黒田了一さんを悼む". 自由法曹団通信 (in Japanese). 1109. Tokyo: Japan Lawyers Association for Freedom. Archived from the original on 8 May 2009. Retrieved 28 April 2009.
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Ishikawa, Motoya (1 November 2003). "黒田了一さんを悼む". 自由法曹団通信 (in Japanese). 1109. Tokyo: Japan Lawyers Association for Freedom. Archived from the original on 8 May 2009. Retrieved 28 April 2009.