Name	Info	Provider	Link
	subscription/membership/fee required	Wiley	https://doi.org/10.1002/1521-3773(20020517)41:10<1790::aid-anie1790>3.0.co;2-y
Cited by Patents in	free resource	The Lens - Patent Citations	https://www.lens.org/lens/search/patent/list?q=citation_id:19750719