Dzyadyk, V. K. “Two Proofs of Cauchy’s Inequality Between the Arithmetical and Geometrical Means of a System of Non-Negative Numbers ”. Ukrains’kyi Matematychnyi Zhurnal 18, no. 6 (October 27, 1966): 115–116. Accessed December 6, 2025. https://umj.imath.kiev.ua/index.php/umj/article/view/8466.