Quellen
John Esposito, What everybody needs to know about Islam, New York 2011, 2. Auflage, 243.
Amena Shakir/Galib Stanfel/Martin M. Weinberger, Ostarrichislam. Fragmente achthundertjähriger gemeinsamer Geschichte, Wien 2012, 189.
Beverly Chico, Hats and Headwear around the World. A cultural Encyclopaedia, Santa Barbara 2013, 175–177, 175 ff.
Erik J. Zürcher, Turkey: A Modern History, London 2004, 43.