C. Hertler and R. Volmer, «Assessing Prey Competition in Fossil Carnivore Communities – A Scenario for Prey Competition and Its Evolutionary Consequences for Tigers in Pleistocene Java,» Palaeogeography, Palaeoclimatology, Palaeoecology 257 (2008): 67–80; H. Hemmer, O. Owen-Smith, and M. Mills, «Predator-Prey Size Relationships in an African Large-Mammal Food Web,» Journal of Animal Ecology 77 (2008): 173–183, doi: 10.1111/j.l365–2656.2007.01314.x.