Iorga, Cristian Mugurel, Maria Cătălina Ţopa, et Mihaela Marilena Stancu. The Study on the Possibility of Using Sewage Sludge in the Ecological Reconstruction of Contaminated Sites from the Petroleum Industry. Analele Universității ”Dunărea de Jos” din Galați. Fascicula II, Matematică, fizică, mecanică teoretică / Annals of the ”Dunarea de Jos” University of Galati. Fascicle II, Mathematics, Physics, Theoretical Mechanics 46, no. 1 (septembre 11, 2023): 24-31. Consulté le juillet 9, 2025. https://www.gup.ugal.ro/ugaljournals/index.php/math/article/view/6236.