@article{19502,
      author       = "Pinto, J. T. and Rodrigues, H. K. and Ribeiro, H. C. and
                      EUREF 2000",
      title        = "National report of Portugal : presented at the EUREF
                      symposium held at Tromso, Norway, 22 - 24 June, 2000  ",
      year         = "2000",
      note         = "Lit. 1, 1 sv.",
}