@book{id_13188,
author = "Balmino, Georges and Reigber, Christoph and Moynot, Bernard",
title = "The Grim 2 earth gravity field model",
year = "1976",
address = "München",
publisher = "Beck",
series = "DGK: Veröffentlichungen A: Theoretische Geodäsie",
volume = "86.",
isbn = "3-7696-8170-3",
}