@book{ Solr-KXP-PPN1087809223, title = {Der Kölner Dom}, series = {Grosse Bauten Europas}, author = {Wolff, Arnold}, address = {Stuttgart}, publisher = {Müller u. Schindler}, year = {1974}, url = {https://swbplus.bsz-bw.de/bsz017809223inh.htm} }