@article{paperid:1050159,
author = {Zamani, Ali and Sal Moslehian, Mohammad},
title = {Approximate Roberts orthogonality sets and (δ,ε)-(a, b)-isosceles-orthogonality preserving mappings},
journal = {Aequationes Mathematicae},
year = {2016},
volume = {90},
number = {3},
month = {March},
issn = {0001-9054},
pages = {647--659},
			numpages = {12},
keywords = {Approximate Roberts orthogonality; Approximate parallelogram law; $a$-isosceles-orthogonality; Orthogonality preserving mappings},
}