Neugschwandtner, R.W., Liebhard, P., Kaul, H.-P., Wagentristl, H..
(2013):
Soil chemical porperties as affected by tillage and crop rotation in a long-term field experiment
In: Crop Research Institute, Long-term Field Experiments and Their Contribution to Environmentally Balanced Agriculture; ISBN: 978-80-7427-144-1