Schweiger, O., Biesmeijer, J.C., Bommarco, R., Hickler, T., Hulme, P.E., Klotz, S., Kühn, I., Moora, M., Nielsen, A., Ohlemüller, R., Petanidou, T., Potts, S.G., Pyšek, P., Stout, J.C., Sykes, M.T., Tscheulin, T., Vilà, M., Walther, G.R., Westphal, C., Winter, M., Zobel, M., Settele, J. (2010) Multiple stressors on biotic interactions: how climate change and alien species interact to affect pollinationBiological Reviews 85 (4): 777-795. http://dx.doi.org/10.1111/j.1469-185X.2010.00125.x