@online{ timsrc, author = "Agostini, Daniele AND Nollau, Clemens", title = "Vorlesung Algebraische Strukturen, 15. und 16. Stunde", publisher = "Universität Tübingen", year = "2023", month = "Dec", day = "05", url = "https://timms.uni-tuebingen.de:443/tp/UT_20231205_001_ws2324algebstruk_0001", urldate = "2024-12-14" }