Carneiro, J., Cardenas, L. M., Hatch, D. J., Trindade, H., Scholefield, D., Clegg, C. D. and Hobbs, P. J. 2010. Effect of the nitrification inhibitor dicyandiamide on microbial communities and N2O from an arable soil fertilized with ammonium sulphate. Environmental Chemistry Letters. 8, pp. 237-246.
Lee, M. R. F., Theodorou, M. K., Kingston-Smith, A. H., Winters, A. L., Minchin, F. R., Morris, P. and MacRae, J. 2006. Polyphenols and their influence on gut function and health in ruminants: a review. Environmental Chemistry Letters. 4 (3), pp. 121-126.