(en) Kelly P Williams et Donovan P Kelly, « Proposal for a new class within the phylum Proteobacteria, Acidithiobacillia classis nov., with the type order Acidithiobacillales, and emended description of the class Gammaproteobacteria », Int J Syst Evol Microbiol, vol. 63, no 8, , p. 2901-2906 (PMID23334881, DOI10.1099/ijs.0.049270-0)
(en) Kelly P Williams et Donovan P Kelly, « Proposal for a new class within the phylum Proteobacteria, Acidithiobacillia classis nov., with the type order Acidithiobacillales, and emended description of the class Gammaproteobacteria », Int J Syst Evol Microbiol, vol. 63, no 8, , p. 2901-2906 (PMID23334881, DOI10.1099/ijs.0.049270-0)