Universitetet i HaifaArkivert 2016-03-03 ved Wayback Machine. Excavation in Marcus Street ramala; Reports and studies of the Recanati Institute for maritime studies Excavations, Haifa 2007
King, Edmund (2004) «Stephen (ca.1092–1154)» Oxford Dictionary of National Biography Oxford University Press, Oxford, England, online edition henta 27. oktober 2009
Universitetet i HaifaArkivert 2016-03-03 ved Wayback Machine. Excavation in Marcus Street ramala; Reports and studies of the Recanati Institute for maritime studies Excavations, Haifa 2007