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Bontadina, Fabio; Schmied, Sebastian F.; Beck, Andres; Arlettaz, Raphaël (2008). Changes in prey abundance unlikely to explain the demography of a critically endangered Central European bat. Journal of Applied Ecology, 45(2), pp. 641-648. Oxford: Blackwell Scientific Publications 10.1111/j.1365-2664.2007.01417.x
