Link to Full-Text Articles :

http://www.sciencedirect.com/science/article/pii/S0950061815002871

http://ac.els-cdn.com/S0950061815002871/1-s2.0-S0950061815002871-main.pdf?_tid=565b4374-4010-11e5-

bd80-00000aab0f01&acdnat=1439287641_161f50ab14bdc582d74245317c3b5533