@inproceedings{paperid:1092037, author = {Hooti, Fatemeh and Ahmadi, Jafar and ماریا لنگ باردی}, title = {General proportional mean residual and past lifetime frailty models}, booktitle = {24th International Conference on Computational Statistics}, year = {2022}, location = {Bologna, ITALY}, keywords = {mean past lifetime; frailty model; stochastic ordering}, }