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Lentfer, T. L.; Gebhardt-Henrich, Sabine G.; Fröhlich, E. K. F.; von Borell, E. (2013). Nest use is influenced by the positions of nests and drinkers in aviaries. Poultry Science, 92(6), pp. 1433-1442. Oxford University Press 10.3382/ps.2012-02718
Lentfer, T.L.; Gebhardt-Henrich, S.G.; Frohlich, E.K.F.; von Borell, E. (2011). Influence of nest site on the behaviour of laying hens. Applied animal behaviour science, 135(1-2), pp. 70-77. Amsterdam: Elsevier 10.1016/j.applanim.2011.08.016