Hutchings, N. J., Andersen, H. V., Hertel, O., Gyldenkærne, S., Frohn, L., Nielsen, K. E.
, Løfstrøm, P., Ellermann, T., Skjøth, C. A., Geels, C., Buchwald, E., Bjerregaard, H. & Olesen, J. (2011).
Denmark. I A. Bleeker & J. W. Erisman (red.),
Final Report COST 729. Assessing and managing nitrogen fluxes in the atmosphere-biosphere system in Europe (s. 98-104). Wageningen Academic Publishers.
Richardson, K., Dahl-Jensen, D., Elmeskov, J., Hagem, C., Henningsen, J., Korstgård, J., Buus Kristensen, N., Morthorst, P. E.
, Olesen, J. E., Wier, M., Nielsen, M. & Karlsson, K. (2011).
Denmark's Road Map for Fossil Fuel Independence.
Solutions for a sustainable and desirable future,
2(4), 45-55.