The effects of biomass burning aerosols and clouds on the 'CO IND.2' flux in Amazonia - Oliveira, Paulo H F; Artaxo Netto, Paulo Eduardo; Pires, Carlos; Lucca, Silvia de; Procópio, Aline; Holben, Brent; Schafer, Joel; Cardoso, Luiz F.; Wofsy, Steven C; Rocha, Humberto Ribeiro da (Tellus Series B: Chemical and Physical Meteorology, 2007)