Conrad, Ralf Emeriti Methanogenic Degradation and Microbial Metabolism of Trace Gases, Max Planck Institute for Terrestrial Microbiology, Max Planck Society;
Jia, Z., Weng, J., Lin, X., & Conrad, R. (2010). Microbial ecology of archaeal ammonia oxidation - A review. Acta Microbiologica Sinica, 50(4), 431-437.