Yin, Hang, et al. “A Rough Set-Cloud Model Approach for Digital Twin-Enabled Natural Heritage Protection Evaluation: A Case Study of Huanglong Scenic Area, China”. Frontiers in Economics and Management, vol. 7, no. 7, July 2026, pp. 52-60, https://doi.org/10.6981/FEM.202607_7(7).0006.