@article{articleeac24f7c, title = {Determination of uranium concentrations and activity ratios in silicates by alpha spectrometry: application to the volcanic rocks from the Trindade and Martin Vaz Islands (Brazil)}, author = {Santos, R N dos and Marques, Leila Soares and Brenha Ribeiro, Fernando}, year = {2002}, doi = {10.1016/s0969-8043(01)00263-9}, journal = {Applied Radiation and Isotopes} }