@article{paperid:1062456,
author = {Sayed Khalil Ekrami and Mirzavaziri, Madjid},
title = {Quadratic Functional Equation On Orthogonality Vector Spaces},
journal = {International Journal of Pure and Applied Mathematics},
year = {2016},
volume = {107},
number = {2},
month = {April},
issn = {1311-8080},
pages = {381--391},
			numpages = {10},
keywords = {quadratic functional equation; orthogonality space; stability},
}