Du, Jianwei, Shao, Yanling, Sun, Xiaoling, Xu, Lan. On the harmonic index and the average eccentricity of a graph. A Canadian journal of applied mathematics, computer science and statistics [Internet]. 2017 Mar. 9 [cited 2026 May 7];102. Available from: https://utilitasmathematica.com/index.php/Index/article/view/1241