Comparison of SF6 and fluorescein as tracers for measuring transport processes in a large tidal river, Ho, D. T.; Schlosser, P.; Houghton, R. W.; Caplow, T. , Journal of Environmental Engineering-Asce, Dec, Volume 132, Issue 12, p.1664-1669, (2006), Doi 10.1061/(Asce)0733-9372(2006)132:12(1664) Abstract