Schumacher, J. Department Biogeochemical Processes, Prof. E.-D. Schulze, Max Planck Institute for Biogeochemistry, Max Planck Society;
http://dx.doi.org/10.1111/j.1365-2435.2006.01098.x (Verlagsversion)
Milcu, A., Schumacher, J., & Scheu, S. (2006). Earthworms (Lumbricus terrestris) affect plant seedling recruitment and microhabitat heterogeneity. Functional Ecology, 20(2), 261-268. doi:10.1111/j.1365-2435.2006.01098.x.