Baran, A.; Mierzwa-Hersztek, M.; Gondek, K.; Szara, M.; Tarnawski, M. The Content and Composition of Organic Matter in Bottom Sediments of the Rybnik Reservoir - Preliminary Studies. geol 2018, 44 (3), 309. https://doi.org/10.7494/geol.2018.44.3.309.