Professor Ptak, in his early 40s, is an expert in both economics and sinology, and is among the youngest sinology professors in Germany. Economic agencies such as Bavaria's Haus der Bayerischen Wirtschaft often draw on his expertise by inviting him to take part in economic forums.
四十出頭的譚克教授，是經濟、漢學雙修的學者專家，也是所有德國漢學系中最年輕的教授之一，德國經濟有關部門經常借重其長才，合辦經濟研討會。