@book{Haase.1989,
 author = {Haase, Rudolf},
 year = {1989},
 title = {Keplers Weltharmonik heute},
 keywords = {Kepler, Johannes 1571-1630;Astronomy Philosophy;Harmony of the spheres;Music Philosophy and aesthetics},
 address = {Ahlerstedt},
 publisher = {Param},
 isbn = {3887550056},
 permalink = {\url{http://d-nb.info/890772681}}
}