Essential mineral components in the muscles of six freshwater fish from the Mazurian Great Lakes (northeastern Poland)
Joanna Łuczyńska, Elżbieta Tońska, Marek Łuczyński
Concentration of mercury in muscles of predatory and non-predatory fish from lake Pluszne (Poland)
Joanna Łuczyńska, Marek Jan Łuczyński, Beata Paszczyk, Elżbieta Tońska