Additionally, he has supervised or reviewed at least 40 Ph.D. theses and at least 18 Masters theses, at the universities of Amsterdam, Berlin, Cambridge, Copenhagen, Göttingen, Hamburg, Helwan, London, Vienna.
Selain itu, dia telah mengawasi atau memeriksa setidaknya 40 tesis Ph. D. dan setidaknya 18 tesis Master, pada universitas-universitas di Amsterdam, Berlin, Cambridge, Copenhagen, Göttingen, Hamburg, Helwan, London, Wina.