id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
cet-85	Fan, Y.V.; Lee, C.T.; Klemes, J.J.	Challenges for Energy Efficiency Improvement Anaerobic Digestion (AD) 	2017	6	.pdf	application/pdf	3763	205	45	This overview attempts to interpret the mentioned aspects for AD energy efficiency enhancement. Table 1: Categorised criteria for AD study.	cache/cet-85.pdf	txt/cet-85.txt