<sod>* {{cite journal |last=Moorhead |first=John |date=1978 |title=The Laurentian Schism: East and West in the Roman Church |journal=Church History |volume=47 |pages=125–136}}<eod>
<sod>* {{cite journal |last=Moorhead |first=John |date=1978 |title=The Laurentian Schism: East and West in the Roman Church |journal=Church History |volume=47 |issue=2|pages=125–136|jstor=3164729}}<eod>