Kopić, Jasna, Jelena Loborec, and Zoran Nakić. 2016. “Hydrogeological and Hydrogeochemical Characteristics of a Wider Area of the Regional Well Field Eastern Slavonia – Sikirevci”. Rudarsko-geološko-Naftni Zbornik 31 (3):47-66. https://doi.org/10.17794/rgn.2016.3.4.