id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
afs-71351	Heinonen, Reijo; Pukkala, Risto	Seasonal variation in soil structure	1954	4	.pdf	application/pdf	1099	68	61	The pH of different plots was as follows; 1. pH 6.9, 2. Some- what parallel changes took place in different plots and horizons.	cache/afs-71351.pdf	txt/afs-71351.txt