@article{28203,
      author       = "Tan, F.C. and Pearson, G.J. and Walker, R.W. and Bedford
                      Instit. of Ocean",
      title        = "Sampling, Extraction, and C 13/C 12 Analysis of Tetal
                      Dissolved CO2 in Marine Environments  ",
      year         = "1973",
      note         = "Obr. a tab. v textu, 1 sv.",
}