id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
afs-5916	TUOMISTO, H. L.; HELENIUS, J.	Comparison of energy and greenhouse gas balances of biogas with other transport biofuel options based on domestic agricultural biomass in Finland	2008	12	.pdf	application/pdf	7066	342	60	Another benefit of biogas production is that wide ranged organic materials, including manure, crops, weeds, sewage sludge and industrial and municipal biowaste, can be used as raw material. Biogas production can also improve the econ- omy and efficiency of organic crop farms.	cache/afs-5916.pdf	txt/afs-5916.txt