Ph. D. Seminar WS 2020/21 Ph. D. Seminar SS 2020 Ph. D. Seminar WS 2019/20 Ph. D. Seminar SS 2019 Ph. D. Seminar WS 2018/19 Ph. D. Seminar SS 2018 Ph. D. Seminar WS 2017/18 Ph. D. Seminar SS 2017 Ph. D. Seminar WS 20167/17