@online{ timsrc, author = "Häfelinger, Günter", title = "Vorlesung Experimentalchemie II, Organische Chemie, SoSe 2002, 44. Stunde", publisher = "Universität Tübingen", year = "2002", month = "Jul", day = "05", url = "https://timms.uni-tuebingen.de:443/tp/UT_20020705_002_chemorg_0001", urldate = "2024-11-09" }