@article{articlec55b839a,
title   = {Comparison of modified Weibull models with bathtub-shaped failure rates},
author = {Cancho, Vicente Garibay and Ortega, Edwin Moisés Marcos and Barriga, Gladys Dorotea Cacsire},
year = {2007},
journal   = {Revista de Matemática e Estatística}
}