id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ap-1860	Masáková, Zuzana; Pelantová, Edita	ITINERARIES INDUCED BY EXCHANGE OF TWO INTERVALS	2013	6	.pdf	application/pdf	4804	352	81	This notion occurs in various con- texts such as return words, Abelian return words, or substitution invariance of the corresponding codings, i.e., Sturmian words. A characterization of Sturmian words by return words.	cache/ap-1860.pdf	txt/ap-1860.txt