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Williams, Kelly P.; Kelly, Donovan P. (2013). „Proposal for a new class within the phylum Proteobacteria , Acidithiobacillia classis nov., with the type order Acidithiobacillales , and emended description of the class Gammaproteobacteria”. International Journal of Systematic and Evolutionary Microbiology. 63 (Pt 8): 2901—2906. PMID23334881. doi:10.1099/ijs.0.049270-0.
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Williams, Kelly P.; Kelly, Donovan P. (2013). „Proposal for a new class within the phylum Proteobacteria , Acidithiobacillia classis nov., with the type order Acidithiobacillales , and emended description of the class Gammaproteobacteria”. International Journal of Systematic and Evolutionary Microbiology. 63 (Pt 8): 2901—2906. PMID23334881. doi:10.1099/ijs.0.049270-0.