المؤلفون: Crockett, Sean, Friedman, Daniel, Oprea, Ryan
URL الوصول: https://www.europeana.eu/item/2048425/item_HFIJJF2TDJQ6Z34FCYJ4NCEDZTN33ITB?utm_source=api&utm_medium=api&utm_campaign=YuvuWBeCa
المؤلفون: Huck, Steffen, Leutgeb, Johannes, Oprea, Ryan
URL الوصول: https://www.europeana.eu/item/2048425/item_YCUFXM33QXTNFZF367MTN7WBQK5PMOZA?utm_source=api&utm_medium=api&utm_campaign=YuvuWBeCa
المؤلفون: Friedman, Daniel, Huck, Steffen, Oprea, Ryan, Weidenholzer, Simon
URL الوصول: https://www.europeana.eu/item/2048425/item_ESIEK5755U5OTS3JPPSRZP75NSME67I2?utm_source=api&utm_medium=api&utm_campaign=YuvuWBeCa
المؤلفون: Wissenschaftszentrum Berlin für Sozialforschung gGmbH, Friedman, Daniel, Huck, Steffen, Oprea, Ryan, Weidenholzer, Simon, http://data.europeana.eu/agent/base/124920
URL الوصول: https://www.europeana.eu/item/2048425/item_HHJT2KOPHGINQKPQRRZH2244SCRYAWRD?utm_source=api&utm_medium=api&utm_campaign=YuvuWBeCa