Poppy, G M, Chiotha, S, Eigenbrod, Felix, Harvey, Celia A, Honzák, M, Hudson, M D, Jarvis, A, Madise, N J, Schreckenberg, Kate, Shackleton, Charlie M, Villa, Ferdinando, Dawson, Terence P. Food security in a perfect storm: using the ecosystem services framework to increase understanding. 2014.

Poppy, G M, Chiotha, S, Eigenbrod, Felix, Harvey, Celia A, Honza´k, M, Hudson, Malcolm D, Jarvis, A, Madise, Nyovani J, Schreckenberg, Kate, Shackleton, Charlie M, Villa, Ferdinando, Dawson, Terence P. Royal Society Publishing; 2014. Understanding food security in a perfect storm: an ecosystem services approach.