Accumulation of elements in annual tree rings measured by synchroton x-ray fluorescence analysis - Vives, Ana Elisa Sirito de; Silva, Richard Maximiliano da Cunha e; Medeiros, Jean Gabriel da Silva; Tomazello Filho, Mário; Barroso, Regina Cely Rodrigues; Zucchi, Orghêda Luiza Araujo Domingues; Moreira, Silvana (X-Ray Spectrometry, 2005)