R. Wilkinson

发表

J. Duckworth, M. Evans, R. Safford, 1995, International Journal of Primatology.

B. Sheldon, J. Duckworth, M. Evans, 1992, Bird Conservation International.

R. Wilkinson, C. Huxley, 1977, Proceedings of the Royal Society of London. Series B. Biological Sciences.

B. Sheldon, G. Dutson, R. Wilkinson, 2011 .