id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
cet-12769		cet-12769		6	.pdf	application/pdf	4363	225	39	Hydrogen energy, economy and storage: Review and recommendation. Waste-to-energy nexus for circular economy and environmental protection: Recent trends in hydrogen energy.	cache/cet-12769.pdf	txt/cet-12769.txt