@online{ timsrc, author = "Böhme, Madelaine", title = "Vorlesung Einführung in die Stratigraphie-V, 17. und 18. Stunde", publisher = "Universität Tübingen", year = "2020", month = "Jul", day = "08", url = "https://timms.uni-tuebingen.de:443/tp/UT_20200708_001_strati_0001", urldate = "2024-10-04" }