Yousof, Haitham, S. Jahanshahi, and Vikas Kumar Sharma. 2019. “The Burr X Fréchet Model for Extreme Values: Mathematical Properties, Classical Inference and Bayesian Analysis”. Pakistan Journal of Statistics and Operation Research 15 (3), 797-818. https://doi.org/10.18187/pjsor.v15i3.2799.