8 research outputs found

    Measured and non-free vortex design results of axial flow fans

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    Die Lautäußerungen des Blutspechts,Dendrocopos syriacus

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    Animal and vegetable nutrition in omnivorous songbirds: annual periodicity, food preferences, physiological and ecological significance

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    A review of invertebrates and seed-bearing plants as food for farmland birds in Europe

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