Zessner, M., Slobodnik, J., Gericke, A., van Gils, J., Alygizakis, N., Ng, K., Kovacs, A., Zoboli, O., & Venohr, M. (2025). Chapter 4 - Water quality of the Danube River and the Black Sea. In The Danube River and The Western Black Sea Coast (pp. 55–81). https://doi.org/10.1016/B978-0-443-18686-8.00010-X