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\bibitem{Szilagyi_etal2009} Szilagyi, A., Scheuring, I., Edwards, D. P., Orivel, J., \& Yu, D. W. (2009). The evolution of intermediate castration virulence and ant coexistence in a spatially structured environment. \textit{Ecol. Lett.}, \textit{12}(12), 1306--1316.

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