Convergences of Oriental Christian, Muslim, and Frankish worshippers: the case of Saydnaya - Ḳedar, Binyamin Zeʾev (Hen, Yitzhak (edt), Linder, Amnon 1937- (hnr), De Sion exibit lex et verbum domini de Hierusalem: essays on medieval law, liturgy, and literature in honour of Amnon Linder, 2001)