TY - SER AU - Mortatti,J. AU - Martinelli,L.A. AU - Matsui,E. AU - Victoria,R.L. AU - Richey,J.E. TI - Isotopic variation of oxygen in the water of river Solimoes/Amazon and its main tributaries KW - BACIA HIDROGRAFICA KW - ANALISE QUIMICA KW - AMAZONIA ER -