Footnote co

^coSee Hansell et al. 2004; Mathis et al. 2005.

Hansell, D.A., D. Kadko and N.R. Bates. 2004. Degradation of terrigenous dissolved organic carbon in the western Arctic Ocean. Science 304:858-861.

Mathis, J. T., D. A. Hansell and N. R. Bates. 2005. Strong hydrographic controls on spatial and seasonal variability of dissolved organic carbon in the Chukchi Sea. Deep-Sea Res. II 52:3245-3258.