id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
afs-71423	Salo, Maija-Liisa	Lignin studies I. Investigations concerning lignin determination	1957	9	.pdf	application/pdf	3992	276	66	In des- criptions of lignin determination methods various demands concerning the grade of fineness are prescribed. Review of sulphuric acid methods In the earliest methods used for the determination of lignin, extraction with organic solvents was the only pretreatment.	cache/afs-71423.pdf	txt/afs-71423.txt