Name	Info	Provider	Link
	subscription/membership/fee required	Wiley	https://onlinelibrary.wiley.com/resolve/openurl?genre=article&sid=nlm:pubmed&issn=0378-1097&date=1995&volume=130&issue=1&spage=75
SILVA SSU Database	free resource	SILVA	http://www.arb-silva.de/search/show/ssu/pubid/7557300
	subscription/membership/fee required	Silverchair Information Systems	https://academic.oup.com/femsle/article-lookup/doi/10.1016/0378-1097(95)00186-9