Covariance analysis of 235U(nth,f) independent and cumulative fission yields: Propositions for JEFF4Grégoire Kessedjian, Sidi-Mohamed Cheikh, Oliver Serot, Abdelhazize Chebboubi, David Bernard, Vanessa Vallet, Robert Mills and Luigi CapponiEPJ Web Conf., 281 (2023) 00022DOI: https://doi.org/10.1051/epjconf/202328100022