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On the extremal values of the eccentric distance sum of trees |
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| Authors: | Shuchao Li Meng Zhang Guihai Yu Lihua Feng |
| Institution: | 1. Faculty of Mathematics and Statistics, Central China Normal University, Wuhan 430079, PR China;2. School of Mathematics, Shandong Institute of Business and Technology, 191 Binhaizhong Road, Yantai, Shandong 264005, PR China |
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