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Genetic differentiation inHediste diversicolor(Polychaeta: Nereididae) for the North Sea and the Baltic SeaM. Röhner; R. Bastrop; K. Jürss · 1997
Enzyme activities and allozyme polymorphism in two genetic types (or sibling species) of the genusMarenzelleria(Polychaeta: Spionidae) in EuropeK. Jürss; M. Röhner; R. Bastrop · 1999
Colonization of Europe by two American genetic types or species of the genus Marenzelleria (Polychaeta: Spionidae). An electrophoretic analysis of allozymesM. Röhner, R. Bastrop, K. Jürss · 1996