@book{id_940,
author = "Kepler, Johannes and Bialas, Volker and Caspar, Max",
title = "Gesammelte Werke",
year = "1953",
address = "München",
publisher = "Beck",
series = "Johannes Kepler Gesammelte Werke",
volume = "5",
url = "http://publikationen.badw.de/de/002334741",
}