Book Chapter
Outreman, Y.; Kunert, G.; Simon, J.C.; Weisser, W.: Ecological costs of alarm signalling in aphids. In: Aphid biodiversity under environmental change - patterns and processes, p. 171 ff (Eds. Kindelmann, P.; Dixon, A.F.G.; Michaud., J.P.). Springer Verlag, Berlin (2010)