@Book{KeplerCasparDyck1933,
author  = "Kepler, Johannes and Caspar, Max [Sonst.] and Dyck, Walther von [Sonst.]",
title   = "Prognostikum auf das Jahr 1620",
year    = "1933",
address = "München",
series  = "Abhandlungen",
volume  = "N.F., 17",
url     = "https://publikationen.badw.de/de/003060450",
}