id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ejpam-440	Eshaghi-Gordji, Madjid; M. Rassias, John; Bavand Savadkouhi, Meysam	Approximation of the Quadratic and Cubic Functional Equations in RN-spaces	2009	14	.pdf	application/pdf	4180	293	86	= 2 f (x + y) + 2 f (x − y) + 12 f (x) (3) M. Gordji, J. Rassias, and M. Savadkouhi / Eur. The following cubic functional equation, which is the oldest cubic functional equation, and was introduced by J. M. Rassias	cache/ejpam-440.pdf	txt/ejpam-440.txt