@book {TN_libero_mab2,

author = { Stapf, Detlef Okapi-Verlag Friedrich, Caspar David },

title = { Caspar David Friedrich die Biografie },

publisher = {Okapi},

publisher = {},

isbn = {9783947965021},

keywords = { Biografie , Friedrich, Caspar David },

year = {[2019]},

abstract = {Literaturverzeichnis: Seite 544-560},

address = { [Berlin] , },

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

}