المؤلفون: Hirsch, Sven
الوصول الحر: https://www.europeana.eu/item/2048441/item_G5QUOGNYVLEFDP5FPDV3SE25X5HRNGOX?utm_source=api&utm_medium=api&utm_campaign=YuvuWBeCaTest
المساهمون: Hirsch, Sven, Deer, Sven
الإتاحة: http://nbn-resolving.de/urn:nbn:de:hbz:061-20071221-102857-9Test