Carbon dioxide emissions along the lower Amazon River - Sawakuchi, Henrique Oliveira; Neu, Vania; Ward, Nicholas D; Barros, Maria de Lourdes Cavalcanti; Valerio, Aline de Matos; Gagne-Maynard, William; Cunha, Alan; Less, Diani Fernanda da Silva; Diniz, Joel E. M; Brito, Daímio Chaves; Krusche, Alex Vladimir; Richey, Jeffrey Edward (Frontiers in Marine Science, 2017)