author = { Börsch-Supan, Helmut Friedrich, Caspar David },

title = { Caspar David Friedrich },

edition = { 3. Aufl. } ,

publisher = {Prestel},

keywords = { Friedrich, Caspar David , Malerei },

year = {1980},

address = { München },

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