Bio-geochemical behavior of 90Sr and 137Cs in tropical soil M. A. Wasserman, A. G. Viana, F. Bartoly, D. Vidal Perez, E. Ruas Rochedo, J. C. Wasserman, C. de Carvalho Conti and R. Janvrot Vivone Radioprotection, 40 (2005) S135-S142 Published online: 17 June 2005 DOI: 10.1051/radiopro:2005s1-022