@online{ timsrc, author = "Leppin, Volker", title = "Vorlesung 1515, 4. Stunde", publisher = "Universität Tübingen", year = "2015", month = "Apr", day = "20", url = "https://timms.uni-tuebingen.de:443/tp/UT_20150420_002_1515_0001", urldate = "2024-11-27" }