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Document type:
Zeitschriftenaufsatz 
Author(s):
asper, M., Freyer, B., Hülsbergen, K.-J., Schmid, H., Friedel, J.K. 
Title:
Humus balances of different farm production systems in main production areas in Austria 
Journal title:
Journal of Plant Nutrition and Soil Science 
Year:
2015 
Journal volume:
178 (1) 
Pages contribution:
25-34