On the starting and operational transients at the core of the RMB based on 2D multigroup diffusion: . Brazilian Journal of Radiation Sciences, Rio de Janeiro, Brazil, v. 10, n. 3B (Suppl.), p. 01–27, 2023. DOI: 10.15392/2319-0612.2022.1993. Disponível em: https://www.bjrs.org.br/revista/index.php/REVISTA/article/view/1993.. Acesso em: 20 may. 2024.