Ecosystem-scale compensation points of formic and acetic acid in the central Amazon - Jardine, K; Yañez Serrano, A; Arneth, A; Abrell, L; Jardine, A; Artaxo Netto, Paulo Eduardo; Alves, E; Kesselmeier, J; Taylor, T; Saleska, S; Huxman, T (Biogeosciences Discussion, 2011)