@online{ timsrc, author = "Zeller, Rüdiger", title = "Vorlesung Mathematik III, 9. Stunde", publisher = "Universität Tübingen", year = "2020", month = "Nov", day = "18", url = "https://timms.uni-tuebingen.de:443/tp/UT_20201118_002_ws2021mathe3_0001", urldate = "2024-11-23" }