Yunjin Zhou, Feng Liu, Wenbin Gao, and Jiajia Sun. “he conomic mpact of the hina nternational ltra arathon on the ost ity: ase tudy of hanghai”. tudies in ports cience and hysical ducation, vol. 1, no. 3, Nov. 2023, pp. 8-14, https://www.pioneerpublisher.com/SSSPE/article/view/534.