George Hatke received his PhD in Near Eastern Studies from Princeton University, USA, in 2012. He is currently a Senior Lecturer in Ancient South Arabian Studies at the University of Vienna, Austria, where he teaches epigraphic South Arabian and the history of South Arabia, in addition to Ga'az, Ugaritic, Maltese, Syriac, and Arabic epigraphy. Since 2015, he has been involved with the project to digitize the South Arabian inscriptions kept at the Austrian Academy of Sciences. His research interests include pre-Islamic South Arabia, ancient and medieval Ethiopia, and comparative Semitic languages.Ronald Ruzicka graduated as Doctor of Technical Mathematics from the University of Vienna, Austria, in 1987, after which he founded Simutech Inc., a company which develops software for environmental techniques and simulation software. After studying at the Language Center of the University of Vienna and researching Arabic Studies at the Bourgiba-Institute, Tunisia, he began an undergraduate degree in Oriental Studies (Arabic, old languages) at the University of Vienna in 2010. Following graduation, he began the Master's program in Arabic Studies at the same institution, with a focus on Ancient South Arabian languages, graduating in 2016, the same year in which he began his doctoral study in Arabic Sciences.