Knoke, T.; Calvas, B.; Ochoa Moreno, S.; Onyekwelu, J. & Griess, V. (2013): Food production and climate protection—What abandoned lands can do to preserve natural forests. Global Environmental Change 23, 1064-1072.
Martinson, G.; Corre, M. & Veldkamp, E. (2012): Responses of nitrous oxide fluxes and soil nitrogen cycling to nutrient additions in montane forests along an elevation gradient in southern Ecuador. Biogeochemistry online , online.