Feng, X, Feakins, S J, Liu, Z, Ponton, C, Wang, R Z, Karkabi, E, Galy, V, Berelson, W M, Nottingham, A T, Meir, P & West, A J 2016, ' Source to sink: Evolution of lignin composition in the Madre de Dios River system with connection to the Amazon basin and offshore : Lignin evolution in Amazon ', Journal of Geophysical Research: Biogeosciences . https://doi.org/10.1002/2016JG003323