@book{id_13562,
author = "Grafarend, Erik W.",
title = "National report of the Federal Republic of Germany on the geodetic activities in the years 1987 - 1991",
year = "1991",
address = "München",
publisher = "Beck",
series = "DGK: Veröffentlichungen B: Angewandte Geodäsie",
volume = "Reihe B, Angewandte Geodäsie ; 294",
isbn = "3-7696-8579-2",
}