Name	Info	Provider	Link
	free resource	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S0005-2736(16)30211-5
	free resource	scite Smart Citations	https://scite.ai/reports/27267704
	free resource	Spiral, Imperial College Digital Repository	http://hdl.handle.net/10044/1/34362