@article{anzanello_2009,  title={A simplified approach for reliability evaluation and component allocation in three-state series and parallel systems composed of non-identical components},  volume={16},  ISSN={0104-530X},  url={https://doi.org/10.1590/S0104-530X2009000100006},  DOI={10.1590/S0104-530X2009000100006},  number={1},  journal={Gestão & Produção},  publisher={Universidade Federal de São Carlos},  author={Anzanello, Michel José},  year={2009},  month={Jan},  pages={54–62} }