Tieva, Antti, and Juha-Matti Junnonen. “Proactive Contracting in Finnish Ppp Projects”. International Journal of Strategic Property Management 13, no. 3 (September 30, 2009): 219-228. Accessed November 13, 2024. https://jau.vgtu.lt/index.php/IJSPM/article/view/6193.