Environmental radioactivity study in surface sediments of Guacanayabo Gulf (Cuba) - Reyes, H; Bernal-Castillo, J L; Díaz Rizo, O; D´Alessandro, K; Padilla Cabal, F; Corrales, Y; Casanova, A O; Rudnikas, A Gelen; Martinez, Y; Aguilar-Mena, J; Guevara, Maria Victoria Manso; Guevara, Maria Victoria Manso; et al. (Reunião de Trabalho sobre Física Nuclear no Brasil, 2008)