C. Stober

The use of different soil nitrogen sources by young Norway spruce plants

E. George, C. Stober, B. Seith, 1999, Trees.

Root Growth and Response to Nitrogen

H. Persson, E. George, C. Stober, 2000 .

Nitrogen Uptake Processes in Roots and Mycorrhizas

L. Högbom, P. Högberg, D. Read, 2000 .