"Lexikon der Chemie: Methan"
"Ecology and Evolution of Archaea, Environmental Genomics"
"The Ammonia oxidation process in Archaea"
"Analysis of biomass productivity and physiology of Nitrososphaera viennensis grown in continuous culture"
"Higher biotic than abiotic natural variability of the plankton ecosystem revealed by a time series along a subantarctic transect"