Name	Info	Provider	Link
	free resource	scite Smart Citations	https://scite.ai/reports/30021084
	subscription/membership/fee required	Silverchair Information Systems	https://direct.mit.edu/neco/article-lookup/doi/10.1162/neco_a_01114
	free resource	Spiral, Imperial College Digital Repository	http://hdl.handle.net/10044/1/60305