Juvenile Blackbird (Turdus merula) moulting primaries and secondaries
Monika Zielińska, Piotr Zieliński, Tomasz Mokwa
Dissolved organic matter transformation in the hyporheic zone of a small lowland river
Piotr Zieliński, Elżbieta Jekatierynczuk-Rudczyk
Ecological status of shallow Lake Gorbacz (NE Poland) in its final stage before drying up
Piotr Zieliński, Jolanta Ejsmont-Karabin, Magdalena Grabowska, Maciej Karpowicz