@online{ timsrc, author = "Ziegler, Thomas", title = "Vorlesung Grundlagen der Organischen Chemie, 49. und 50. Stunde", publisher = "Universität Tübingen", year = "2021", month = "Jul", day = "20", url = "https://timms.uni-tuebingen.de:443/tp/UT_20210720_001_sose21orgchem_0001", urldate = "2024-11-23" }