id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ijassa-304	Shaoqiang, Shang; Wulede, Suyalatu	Dentability and Convexity	2011	13	.pdf	application/pdf	8244	493	94	( , ) ( , ),X X X X X X X X      X X X   For any ( , ) ,x y G we have 1 2( , ) ( ,0) (0, ) ( ) ( ) , 2 2 f x y f x f y f x f y   	cache/ijassa-304.pdf	txt/ijassa-304.txt