Footnote cs

^csSee Yager et al. 1995.

Yager, P.L., D.W.R. Wallace, K.M. Johnson, W.O. Smith, Jr., P.J. Minnett and J.W. Deming. 1995. The northeast water polynya as an atmospheric CO₂ sink: A seasonal rectification hypothesis. J. Geophys. Res., 100(C3):4389-4399.