@misc{id_978,
author = "Kepler, Johannes and Bialas, Volker and Caspar, Max",
title = "Gesammelte Werke",
year = "2002",
address = "München",
publisher = "Beck",
series = "Johannes Kepler Gesammelte Werke",
volume = "21,1",
isbn = "3-406-47427-6",
URL = "http://publikationen.badw.de/de/014727294",
}