Name	Info	Provider	Link
	subscription/membership/fee required	Wiley	https://onlinelibrary.wiley.com/resolve/openurl?genre=article&sid=nlm:pubmed&issn=0022-3573&date=1991&volume=43&issue=10&spage=715
Cited by Patents in	free resource	The Lens - Patent Citations	https://www.lens.org/lens/search/patent/list?q=citation_id:1682447
	subscription/membership/fee required	Silverchair Information Systems	https://academic.oup.com/jpp/article-lookup/doi/10.1111/j.2042-7158.1991.tb03464.x