@book{id_13185,
author = "Brennecke, Jürgen",
title = "Variationen zum Geoid in Deutschland",
year = "1975",
address = "München",
publisher = "Beck",
series = "DGK: Veröffentlichungen A: Theoretische Geodäsie",
volume = "83.",
isbn = "3-7696-8168-1",
}