Matwiejczuk, Wiesław, and Mariusz Gorustowicz. “Determinants of Cyclical Changes Within the Construction Sector”. Ekonomia i Prawo. Economics and Law 16, no. 4 (December 31, 2017): 459–470. Accessed July 16, 2024. https://apcz.umk.pl/EiP/article/view/EiP.2017.032.