@article{29061,
      author       = "Bozzolato, G. and AGIP S.p.A. - It.",
      title        = "Signal perfectionné pour levés industriels  ",
      year         = "1986",
      note         = "1 sv., G 01 C 15/02, 11/00., 14.3.1986, 24.10.1986,
                      19.4.1985",
}