@article{8900,
      author       = "Gubler, Erich and Symposium IAG subcommission for Europe
                      (EUREF) held in Bad Neuemahr - Ahrweiler, June 10 - 13,
                      1998",
      title        = "EUREF publication. No. 7/I, 7/II : Report on the symposium
                      of the IAG subcommission for Europe (EUREF) held in Bad
                      Neuemahr - Ahrweiler, June 10 - 13, 1998 : Reports of the
                      EUREF technical working group  ",
      year         = "1999",
      note         = "Lit., (Mitt. BKG, ISSN 1436-3445 ; 6, 7)., No. 7/I - 1 sv.,
                      No. 7/II - 1 sv.",
}