author = { Koetschau, Karl Hübner, Julius },

title = { Frühe Bildnisse von Julius Hübner },

publisher = {Schwann},

year = {[1925]},

booktitle = {Pempelfort ; 9},

address = { Düsseldorf },

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