@article{article6af9faff,
title   = {Incorporation of frailties into a non-proportional hazard regression model and its diagnostics for reliability modeling of downhole safety valves},
author = {Louzada, Francisco and Cuminato, José Alberto and Hernandez Rodriguez, Oscar Mauricio and Tomazella, Vera Lucia Damasceno and Milani, Eder Angelo and Ferreira, Paulo Henrique and Ramos, Pedro Luiz and Bochio, Gustavo and Perissini, Ivan Carlos and Gonzatto Junior, Oilson Alberto and Mota, Alex Leal and Alegria, Luis Felipe Acuña and Colombo, Danilo and Oliveira, Paulo Guilherme Oliveira de and Santos, Hugo Francisco Lisboa and Magalhães, Marcus Vinicius de Campos},
year = {2020},
doi = {10.1109/ACCESS.2020.3040525},
journal   = {IEEE Access}
}