1. Priming effects of some organic additions to 14C-labelled soil;Dalenberg;Soil Biol. Biochem,1989
2. Danneberg, O.H., 1970. Huminstoffaufbau und Stickstoffumbau während der Rotte von Maisstroh. Ph.D. Thesis, University of Natural Resources and Applied Life Sciences, Vienna
3. EN 13432, 2001. Requirements for packaging recoverable through composting and biodegradation––test scheme and evaluation criteria for the final acceptance of packaging. CEN Brussels
4. Environmental impacts of biobased/biodegradable packaging materials;Fritz;Stärke/Starch,2001
5. Hund, K., 1994. Entwicklung von biologischen Testsystemen zur Kennzeichnung der Bodenqualität. Study No. 94-011, Environmental agency, Berlin