@book { JudenalsRandgruppenimMittelalter, title = "Juden als Randgruppen im Mittelalter", author = "David {Pollak} and Gerold {Kalb}", year = "2007", publisher = "GRIN Verlag", address = "München, Germany", doi = "10.3239/9783638611305", url = "https://www.hausarbeiten.de/document/68699" }