Kraszewski, Cezary, and Jan Pachowski. 2004. “Utilization of Post - Refinery Oil Sludge for Soil Stabilisation in Road Construction. Part II: Trial Sections Tests”. Roads and Bridges - Drogi I Mosty 3 (1):25-54. https://rabdim.pl/index.php/rb/article/view/v3n1p25.