1. F. Bartumeus, Fractals 15, 151 (2007)
2. F. Bartumeus, J. Catalan, E. Raposo, G. Viswanathan, M.G.E. da Luz, J. Theor. Biol. (2007) (submitted)
3. F. Bartumeus, M.G.E. da Luz, G.M. Viswanathan, J. Catalan, Ecology 86, 3078 (2005)
4. H. Berg (Princeton University Press, Princeton, 1983)
5. J.M. Bullock, R.E. Kenward, R.S. Hails (eds.), Dispersal ecology (Blackwell Publishing, Cambridge University Press, Cambridge, 2002)