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Link to Full-Text Articles :
http://ac.els-cdn.com/S0017931015000836/1-s2.0-S0017931015000836-main.pdf?_tid=4befaa9c-4010-11e5-
aa03-00000aacb35d&acdnat=1439287624_085f3e0f6ed8efd073817077c97256cd