%0 Journal Article %T On the reliability properties of some weighted models of bathtub shaped hazard rate distributions %A Shafaei Noughabi, Mohammad %A Mohtashami Borzadaran, Gholam Reza %A Rezaei Roknabadi, Abdolhamid %J Probability in the Engineering and Informational Sciences %@ 0269-9648 %D 2013