Xu L, Liu N, Zhang S, Qiu H, Chen L, Wang Z. Efficiency and determinants analysis of Chinese infrastructure PPP projects in the construction and operation stages. IJSPM [Internet]. 2019Feb.18 [cited 2024Nov.23];23(3):156-70. Available from: https://jest.vgtu.lt/index.php/IJSPM/article/view/7911