Name	Info	Provider	Link
	subscription/membership/fee required	Ingenta plc	http://ijs.microbiologyresearch.org/pubmed/content/journal/ijsem/10.1099/ijs.0.65836-0
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/19060060/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/19060060
SILVA SSU Database	free resource	SILVA	http://www.arb-silva.de/search/show/ssu/pubid/19060060