Sources of anthropogenic lead in sediments from an artificial lake in Brasília-Central Brazil - Gioia, Simone; Pimentel, Marcio Martins; Tessler, Moyses Gonsalez; Dantas, Elton Luiz; Campos, J. E. G.; Guimarães, Edi Mendes; Maruoka, M. T. S.; Nascimento, E. L. C. (Science of total Environment, 2006)