@article{bühn_pimentel_matteini_dantas_2009,  title={High spatial resolution analysis of Pb and U isotopes for geochronology by laser ablation multi-collector inductively coupled plasma mass spectrometry (LA-MC-ICP-MS)},  volume={81},  ISSN={0001-3765},  url={https://doi.org/10.1590/S0001-37652009000100011},  DOI={10.1590/S0001-37652009000100011},  number={1},  journal={Anais da Academia Brasileira de Ciências},  publisher={Academia Brasileira de Ciências},  author={Bühn, Bernhard and Pimentel, Márcio M. and Matteini, Massimo and Dantas, Elton L.},  year={2009},  month={Mar},  pages={99–114} }