author = { Walther, Angelo Friedrich, Caspar David },

title = { Caspar David Friedrich },

edition = { 2. Aufl. } ,

publisher = {Henschel},

year = {1974},

booktitle = {Welt der Kunst},

address = { Berlin },

url = { http://slubdd.de/katalog?TN_libero_mab2 }