id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
afs-71432	Kivekäs, Jaakko; Kaila, Armi	Extractable calcium, magnesium, potassium and sodium in diefferent peat types	1957	15	.pdf	application/pdf	7081	224	66	Determination of the degree of humification in peat samples. Calicium, magnesium, potassium and sodium extracted by 1 N ammonium chloride from virgin peat samples.	cache/afs-71432.pdf	txt/afs-71432.txt