Wisotzkey, J.D., Jurtshuk, P., Jr., Fox, G.E., Deinhard, G., Poralla, K. 1992. Comparative sequence analyses on the 16s rRNA (rDNA) of Bacillus acidocaldarius, Bacillus acidoterrestris, and Bacillus cycloheptanicus and proposal for creation of a new genus, Alicyclobacillus gen. nov. International Journal of Systematic Bacteriology. 42 : 263-269.