@online{ timsrc, author = "Häfelinger, Günter", title = "Vorlesung Experimentalchemie II, Organische Chemie, SoSe 2002, 13. Stunde", publisher = "Universität Tübingen", year = "2002", month = "May", day = "10", url = "https://timms.uni-tuebingen.de:443/tp/UT_20020510_001_chemorg_0001", urldate = "2024-11-09" }