@book{id_13183,
author = "Zielinski, Janusz B.",
title = "Vertical sounding of the earth's gravity field",
year = "1974",
address = "München",
publisher = "Beck",
series = "DGK: Veröffentlichungen A: Theoretische Geodäsie",
volume = "81",
isbn = "3-7696-8166-5",
}