author = { Humboldt, Wilhelm von Kappstein, Theodor },

title = { Wilhelm Humboldt schreibt an seine Freunde },

publisher = {Münchner Buchverl.},

year = {[1942]},

booktitle = {Münchner Lesebogen ; 94},

address = { München },

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