@article{article2db81e27,
title   = {SHRIMP U-Pb, 207Pb/206Pb zircon dating, and Nd isotopic signature of the Umburanas greenstone belt, northern São Francisco craton, Brazil},
author = {Leal, Luiz Rogerio Bastos and Cunha, José C. and Cordani, Umberto G. and Teixeira, Wilson and Nutman, Allen and Leal, Ângela Menezes and Macambira, Moacir José Buenano},
year = {2003},
doi = {10.1016/s0895-9811(02)00129-3},
journal   = {Journal of South American Earth Sciences}
}