Hu, Tinghao, Jiang Chang, and Ralf-Uwe Syrbe. “Green Infrastructure Planning in Germany and China: A Comparative Approach to Green Space Policy and Planning Structure”. Research in Urbanism Series 6 (September 11, 2020): 99–126. Accessed June 30, 2022. https://rius.ac/index.php/rius/article/view/96.