(2020). Preface. Optimization: Vol. 69, Special Issue Dedicated to Professor Wataru Takahashi on the Occasion of his 75th Birthday, pp. 1847-1848.

中文翻译：

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前言

（2020）。前言。优化：卷 69，《高桥渡郎教授诞辰75周年之际专刊》，第1847-1848页。