GÁMEZ RODRÍGUEZ, A., Rojas Mazaira, L.Y., Milian Perez, D., Sanchez Dominguez, D., García Hernández, C.R. and Brayner de Oliveira Lira, C.A. 2021. Impact of variable porosity models on the safety of high temperature pebble bed gas-cooled reactors. Brazilian Journal of Radiation Sciences. 8, 3A (Suppl.) (Feb. 2021). DOI:https://doi.org/10.15392/bjrs.v8i3A.1542.