@Book{KeplerHammerDyckCaspar1960,
author  = "Kepler, Johannes and Hammer, Franz [Sonst.] and Dyck, Walther von [Hg./Red.] and Caspar, Max [Hg./Red.]",
title   = "Gesammelte Werke. Mathematische Schriften",
year    = "1960",
address = "München",
series  = "Kepler. Gesammelte Werke",
volume  = "9",
url     = "https://publikationen.badw.de/de/002334745",
}