ASHKAR, D. M. Y. The Availability of Systems with Bathtub Hazard Rate Function. JOURNAL OF ADVANCES IN MATHEMATICS, [S. l.], v. 15, p. 8162–8173, 2018. DOI: 10.24297/jam.v15i0.7953. Disponível em: https://www.rajpub.com/index.php/jam/article/view/7953. Acesso em: 19 may. 2024.