Faunal diversity of Fagus sylvatica forests: A regional and European perspective based on three indicator groups. - Walentowski, H.; Müller-Kroehling, S.; Bergmeier, E.; Bernhardt-Römermann, M.; Gossner, M. M.; Reif, A.; Schulze, E.-D.; Bußler, H.; Strätz, C.; Adelmann, W. (Annals of Forest Research (1844-8135), 2014)