M. A.  Sutton, Oenema, O., Erisman, J. Willem, Leip, A., van Grinsven, H., and Winiwarter, W., ?{Too much of a good thing.}?, Nature, vol. 472, pp. 159?61, 2011.

A.  Leip, Weiss, F., Lesschen, J. Peter, and Westhoek, H., ?{The nitrogen footprint of food products in the European Union}?, The Journal of Agricultural Science, vol. 152, pp. 20?33, 2014.

A.  Leip, Leach, A. M., Musinguzi, P., Tumwesigye, T., Olupot, G., Tenywa, J. Stephen, Mudiope, J., Hutton, O., Cordovil, C. Md.S., Bekunda, M., and Galloway, J. N., ?{Nitrogen-neutrality: a step towards sustainability}?, Environmental Research Letters, vol. 9, p. 115001, 2014.

D.  Vanham, Leip, A., Galli, A., Kastner, T., Bruckner, M., Uwizeye, A., van Dijk, K., Ercin, E., Dalin, C., Brandão, M., Bastianoni, S., Fang, K., Leach, A. M., Chapagain, A., Van der Velde, M., Sala, S., Pant, R., Mancini, L., Monforti-Ferrario, F., Carmona-Garcia, G., Marques, A., Weiss, F., and Hoekstra, A. Y., ?{Environmental footprint family to address local to planetary sustainability and deliver on the SDGs}?, Science of The Total Environment, vol. 693, p. 133642, 2019.

A.  Leip and Uwizeye, A., ?{Nitrogen Footprints}?, Encyclopedia of Ecology, vol. 4, pp. 370?382, 2019.

A.  Leip, Ledgart, S., Uwizeye, A., Palhares, J. C. P., Aller, F., Amon, B., Binder, M., Cordovil, C. Md.S., Dong, H., Fusi, A., Helin, J., Hörtenhuber, S., Hristov, A. N., Koelsch, R., Liu, C., Masso, C., Nkongolo, N. V., Patra, A. K., Redding, M. R., Rufino, M. C., Sakrabani, R., Thoma, G., Vertès, F., Wang, Y., Ledgard, S., Uwizeye, A., Palhares, J. C. P., M. Aller, F., Amon, B., Binder, M., Cordovil, C. Md.S., De Camillis, C., Dong, H., Fusi, A., Helin, J., Hörtenhuber, S., Hristov, A. N., Koelsch, R., Liu, C., Masso, C., Nkongolo, N. V., Patra, A. K., Redding, M. R., Rufino, M. C., Sakrabani, R., Thoma, G., Vertès, F., and Wang, Y., ?{The value of manure - manure as co-product in life cycle assessment}?, Journal of Environmental Management, vol. 241, pp. 293?304, 2019.

D.  Vanham and Leip, A., ?{Sustainable food system policies need to address environmental pressures and impacts: The example of water use and water stress}?, Science of The Total Environment, vol. 730, p. 139151, 2020.