Organic matter in the Peruvian headwaters of the Amazon: compositional evolution from the Andes to the lowland Amazon mainstem
https://stroudcenter.org/wp-content/uploads/2016/09/Lofty-Stream-Dave-Funk-1024x681.jpg 1024 681 Stroud Water Research Center Stroud Water Research Center https://stroudcenter.org/wp-content/uploads/2016/09/Lofty-Stream-Dave-Funk-1024x681.jpgAufdenkampe, A.K., E. Mayorga, J.I. Hedges, C. Llerena, P.D. Quay, J. Gudeman, A.V. Krusche and J.E. Richey. 2007. Organic Geochemistry 38(3):337–364.