@book{id_3949,
author = "Gubler, Erich",
title = "Report on the Symposium of the IAG Subcommission for the European Reference Frame (EUREF), held in Florence 28 - 31 May 1990",
year = "1992",
address = "München",
publisher = "Beck",
series = "Astronomisch-Geodätische Arbeiten",
volume = "52",
isbn = "3-7696-9795-2",
}