Juliana Dias Bernandes Gil, Pytrik Reidsma, Ken Giller, Lindsay Todman, Whitmore, A. P. and Martin van Ittersum 2019. Sustainable Development Goal 2: improved targets and indicators for agriculture and food security . AMBIO: A Journal of the Human Environment. 48 (7), pp. 685-698. https://doi.org/10.1007/s13280-018-1101-4
Bergstrom, L. and Goulding, K. W. T. 2005. Perspectives and challenges in the future use of plant nutrients in tilled and mixed agricultural systems. AMBIO: A Journal of the Human Environment. 34 (4), pp. 283-287. https://doi.org/10.1579/0044-7447-34.4.283
Kirchmann, H., Johnston, A. E. and Bergstrom, L. F. 2002. Possibilities for reducing nitrate leaching from agricultural land. AMBIO: A Journal of the Human Environment. 31, pp. 404-408.