Betts, R.A., Falloon, P.D., Gornall, J., Kaye, N., Wiltshire, A. and Wheeler, T. R. (2009) Climate change and food security. In: Climate Sense. Tudor Rose, Leicester, pp. 39-41. ISBN 9789263110435

Murdoch, A. J., de la Warr, P. N., Pilgrim, R. A., Miller, P. C., Lutman, P. J., Edwards, J., Robinson, T., Magri, B., Scott, T., Walters, N., Morton, S. and Beddows, S. (2009) Towards the automated mapping of weed patches in arable fields. In: Agronomists’ Conference 2009, Tuesday 8th December 2009, Hilton Northampton – Collingtree, Northamptonshire .