Marjanović, Aleksandra, Jasmina Đeđibegović, Elma Omeragić, and Miroslav Šober. “Occurrence of the Heavy Metals and PCBs in Accumulation Lake Modrac”. Bulletin of Chemists and Technologists of Bosnia and Herzegovina 57 (December 1, 2021): 9–16. Accessed September 3, 2026. https://glashem.pmf.unsa.ba/index.php/bctbh/article/view/288.