@book{id_13509,
author = "Drewes, Hermann",
title = "Präzisionsschwerenetze und zeitliche Schwereänderungen in West-Venezuela",
year = "1980",
address = "München",
publisher = "Beck",
series = "DGK: Veröffentlichungen B: Angewandte Geodäsie",
volume = "251",
isbn = "3-7696-8543-1",
}