author = { Claasen, Hermann },

title = { Hermann Claasen, Werkverzeichnis 2 Trümmer },

publisher = {Rheinland-Verl.},

isbn = {3792715171},

keywords = { Claasen, Hermann , Fotografie , Köln , Ruine },

year = {1996},

address = { Köln },

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