Güler Dog˘an Averbek graduated from Bog˘aziçi University. She holds an MA from Bog˘aziçi University and a PhD from Marmara University. She has conducted research, particularly in the area of Turkish classical literature. Between 2000 and 2013, she worked as a researcher at the Research Centre for Islamic History, Art and Culture (OIC-IRCICA). Now she is a faculty member at Istanbul Medeniyet University. Harald Bichlmeier studied at the universities at Würzburg and Prague, got his Dr.phil. from the University of Würzburg and his habilitation from the University Halle-Wittenberg. Since 1998, he has held positions in several university departments and worked in various projects at academies and universities. Since 2009, he has been the co-author of the Etymological Dictionary of Old High German (Saxonian Academy of Sciences).