^Klein, A. N.; Frigon, D.; Raskin, L. (2007). "Populations related to Alkanindiges, a novel genus containing obligate alkane degraders, are implicated in biological foaming in activated sludge systems". Environmental Microbiology. 9 (8): 1898–1912. doi:10.1111/j.1462-2920.2007.01307.x. PMID17635538.