@online{ timsrc, author = "Oberwinkler, Franz", title = "Vorlesung Botanik II, 6. Stunde", publisher = "Universität Tübingen", year = "2005", month = "Apr", day = "20", url = "https://timms.uni-tuebingen.de:443/tp/UT_20050420_001_botanik2_0001", urldate = "2024-12-14" }