TY - GEN A1 - Steffen, Kristina A1 - Leuschner, Christoph A1 - Müller, Uta A1 - Wiegleb, Gerhard A1 - Becker, Thomas T1 - Relationships between macrophyte vegetation and physical and chemical conditions in northwest German running waters T2 - Aquatic Botany Y1 - 2014 SN - 0304-3770 IS - 113 SP - 46 EP - 55 ER -