id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
app01-7426	Týfa, Lukáš; Kruntorád, Jan; Tomaschko, Ondřej	Railway superstructure for high-speed rails	2021	5	.pdf	application/pdf	3084	123	52	Keywords: Track construction, track structure, track ballast, ballastless track, high-speed rail, investment and operational costs. In addition, current research and development in the field of ballastless track is moving towards extending the life of ballastless track well beyond this limit.	cache/app01-7426.pdf	txt/app01-7426.txt