Using 239Pu as a tracer for fine sediment sources in the Daly River, Northern Australia R. Lal, L. K. Fifield, S.G. Tims, R.J. Wasson and D. Howe EPJ Web of Conferences, 91 (2015) 00006 Published online: 06 April 2015 DOI: 10.1051/epjconf/20159100006