Ulrike Purkhold

Characterization of activated sludge flocs by confocal laser scanning microscopy and image analysis.

Markus Schmid, Stefan Wuertz, Michael Wagner, 2003, Water research.

Illuminating the Evolutionary History of Chlamydiae

Dmitrij Frishman, Marcus Droege, Thomas Rattei, 2004, Science.

16S rRNA and amoA-based phylogeny of 12 novel betaproteobacterial ammonia-oxidizing isolates: extension of the dataset and proposal of a new lineage within the nitrosomonads.

Michael Wagner, M. Wagner, H. Koops, 2003, International journal of systematic and evolutionary microbiology.

Microbial community composition and function in wastewater treatment plants

Michael Wagner, Alexander Loy, Holger Daims, 2002, Antonie van Leeuwenhoek.