Footnote bt

^btSee Álvarez et al. 2002b.

Álvarez, M.,A.F. Ríos, G. Ronsón. 2002b. Spatio-temporal variability of air-sea carbon dioxide and oxygen in the Bransfield and Gerlache Straits during austral summer 1995-1996. Deep-Sea Res. II, 49(4-5):643-662.