المؤلفون: Berthold Flessa, https://www.wir-waren-so-frei.de/index.php/Browse/modifyCriteria/facet/creator_facet/mod_id/0/id/593, Europeana
URL الوصول: http://europeana.eu/portal/record/2025901/https___www_wir_waren_so_frei_de_index_php_Detail_Object_Show_object_id_6757.html
المؤلفون: Fumiko Matsuyama, https://www.wir-waren-so-frei.de/index.php/Browse/modifyCriteria/facet/creator_facet/mod_id/0/id/86, Europeana
URL الوصول: http://europeana.eu/portal/record/2025901/https___www_wir_waren_so_frei_de_index_php_Detail_Object_Show_object_id_2204.html
المؤلفون: Berthold Flessa
الإتاحة: https://www.wir-waren-so-frei.de/index.php/Detail/Object/Show/object_id/6757
المؤلفون: Fumiko Matsuyama
الإتاحة: https://www.wir-waren-so-frei.de/index.php/Detail/Object/Show/object_id/2204