1
Soil, plant and atmosphere : concepts, processes and applications /
Book
...GNA - Geology - soil sciences...
Table of Contents 
2
Nitrogen in terrestrial ecosystems: questions of productivity, vegetational changes, and ecosystem stability.
Book
...GNA - Geology - soil sciences...
3
Wechselwirkungen von Bodenbearbeitungssystemen auf das Ökosystem Boden : Agrarwissenschaften interdisziplinäre Forschung BMFT/PBE Projekt Symposium : Giessen, 05.89.
Book
4
Soil organic matter : biological and ecological effects /
Book
...GNA - Geology - soil sciences...