Ramadan, Yahya, György Pátzay, and Gábor Tamás Szabó. 2010. “Transport of NaCl, MgSO<sub>4< sub>, MgCl<sub>2< sub> and Na<sub>2< sub>SO<sub>4< sub> Across DL Type Nanofiltration Membrane”. Periodica Polytechnica Chemical Engineering 54 (2):81-86. https://doi.org/10.3311/pp.ch.2010-2.04.