Minimizing the variance of the coverage ratio as an approach to optimize the exchange rate risk of Brent futures contractsMustapha Bouchekourte, Sara Rhouas and Norelislam El HamiInt. J. Simul. Multidisci. Des. Optim., 13 (2022) 17DOI: https://doi.org/10.1051/smdo/2022006