Optimal inspection and preventive maintenance of units with revealed and unrevealed failures. - Francisco Germán Badía; María Dolores Berrade; Clemente A. Campos (Reliab. Eng. Syst. Saf., 2002)

Aging properties of the additive and proportional hazard mixing models. - Francisco Germán Badía; María Dolores Berrade; Clemente A. Campos (Reliab. Eng. Syst. Saf., 2002)

Optimum Maintenance Policy of a Periodically Inspected System under Imperfect Repair. - Francisco Germán Badía; María Dolores Berrade (Adv. Oper. Res., 2009)

Log-concavity for Bernstein-type operators using stochastic orders. - Francisco Germán Badía; Carmen Sangüesa (Electron. Notes Discret. Math., 2013)

Stochastic comparison of multivariate conditionally dependent mixtures. - Francisco Germán Badía; Carmen Sangüesa; Ji Hwan Cha (J. Multivar. Anal., 2014)

The DFR Property for Counting Processes Stopped at an Independent Random Time. - Francisco Germán Badía; Carmen Sangüesa (J. Appl. Probab., 2015)

Univariate and multivariate stochastic comparisons and ageing properties of the generalized Pólya process. - Francisco Germán Badía; Carmen Sangüesa; Ji Hwan Cha (J. Appl. Probab., 2018)

Stochastic comparisons and multivariate dependence for the epoch times of trend renewal processes. - Francisco Germán Badía; Carmen Sangüesa; Ji Hwan Cha (J. Multivar. Anal., 2018)

Optimal replacement policy under a general failure and repair model: Minimal versus worse than old repair. - Francisco Germán Badía; María Dolores Berrade; Ji Hwan Cha; Hyunju Lee (Reliab. Eng. Syst. Saf., 2018)

An study of cost effective maintenance policies: Age replacement versus replacement after N minimal repairs. - Francisco Germán Badía; María Dolores Berrade; Hyunju Lee (Reliab. Eng. Syst. Saf., 2020)

Maintenance of systems with critical components. Prevention of early failures and wear-out. - María Dolores Berrade; Esteban Calvo; Francisco Germán Badía (Comput. Ind. Eng., 2023)

Preservation of the log concavity by Bernstein operator with an application to ageing properties of a coherent system. - Francisco Germán Badía; Ji Hwan Cha; H. Lee; Carmen Sangüesa (J. Comput. Appl. Math., 2024)

Inspection and maintenance of a system with a bypass component. - María Dolores Berrade; Esteban Calvo; Francisco Germán Badía (Reliab. Eng. Syst. Saf., 2025)