@online{ timsrc, author = "Böhme, Madelaine AND Kirscher, Uwe", title = "Vorlesung Einführung in die Stratigraphie-V, 9. und 10. Stunde", publisher = "Universität Tübingen", year = "2020", month = "May", day = "27", url = "https://timms.uni-tuebingen.de:443/tp/UT_20200527_001_strati_0001", urldate = "2024-11-21" }