@online{ timsrc, author = "Leppin, Volker", title = "Vorlesung 1517, 2. Stunde", publisher = "Universität Tübingen", year = "2017", month = "Apr", day = "24", url = "https://timms.uni-tuebingen.de:443/tp/UT_20170424_002_1517_0001", urldate = "2024-11-23" }