B. Hellmann

Nycthemeral variations of the dissolved oxygen concentration in the turbidity maximum of three European estuaries: biological vs. physical processes

X. Irigoien, J. Post, J. Castel, 1999 .

Emission of N-Oxides from Acid Irrigated and Limed Soils of a Coniferous Forest in Bavaria

H. Rennenberg, H. Papen, B. Hellmann, 1993 .

Emission of Climate-Relevant Trace Gases and Succession of Microbial Communities during Open-Windrow Composting

L. Zelles, A. Palojärvi, Q. Bai, 1997, Applied and environmental microbiology.