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Stephen C. McKillup and Ruth V. McKillup. (2000). The Effects of Two Parasitoids on the Life History and Metapopulation Structure of the Intertidal Snail Littoraria filosa in Different-Sized Patches of Mangrove Forest. Oecologia, 123(4), 525–534. doi:10.2307/4222651 
10.2307/4222651