Spang A, Poehlein A, Offre P, Zumbrägel S, Haider S, Rychlik N, et al. (December 2012). "The genome of the ammonia-oxidizing Candidatus Nitrososphaera gargensis: insights into metabolic versatility and environmental adaptations". Environmental Microbiology. 14 (12): 3122–3145. doi:10.1111/j.1462-2920.2012.02893.x. PMID23057602.
Spang A, Poehlein A, Offre P, Zumbrägel S, Haider S, Rychlik N, et al. (December 2012). "The genome of the ammonia-oxidizing Candidatus Nitrososphaera gargensis: insights into metabolic versatility and environmental adaptations". Environmental Microbiology. 14 (12): 3122–3145. doi:10.1111/j.1462-2920.2012.02893.x. PMID23057602.