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2. Studium uwarunkowań i kierunków zagospodarowania przestrzennego Wrocławia (study of land-use and development of Wrocław city);Anon.,2009
3. Notes on migration dynamics and biometry of the wood sandpiper (Tringa glareola) at the sewage farm of Münster (NW Germany);Anthes;Ring,2002
4. Sewage Farms;Berlin Digital Environmental Atlas,2009
5. Important Bird Areas Factsheet: Irrigation Fields in Wroclaw;BirdLife International,2013