@online{ timsrc, author = "Zeller, Rüdiger", title = "Vorlesung Mathematik III, 20. Stunde", publisher = "Universität Tübingen", year = "2020", month = "Dec", day = "16", url = "https://timms.uni-tuebingen.de:443/tp/UT_20201216_001_ws2021mathe3_0001", urldate = "2024-12-14" }