@article{ author = {Kashi, Mansour, Hosseyni, S. Hassan, niyazkhani, A. Sadat, Abdollahi, S. Amin}, title = {VaR modeling and back testing of short and long positions according to in Sample and out of Sample: application of family models Fractionally Integrated GARCH}, journal = {Financial Engineering and Portfolio Management}, year = {2016}, volume = {7}, number = {29}, pages = {1-24}, doi = {} }