@inproceedings{paperid:1006886, author = {Mohtashami Borzadaran, Hossein Ali and Mohtashami Borzadaran, Gholam Reza}, title = {Concavity property for Pearson and Burr types distributions}, booktitle = {نهمین کنفرانس آمار ایران}, year = {2008}, location = {اصفهان, IRAN}, keywords = {Concavity property for Pearson and Burr types distributions}, }