RT Article T1 Marie-Hélène Blanchet, Georges-Gennadios Scholarios JF Byzantinische Zeitschrift VO 102 IS 1 SP 219 OP 232 A1 Tinnefeld, Franz LA German PB De Gruyter YR 2009 UL https://www.ixtheo.de/Record/1780291590 DO 10.1515/BYZS.2009.010