@online{ timsrc, author = "Riethmüller, Gerhard AND Kuhn, Norbert", title = "Faszination Chemie - ein Zugang durch Experimente", publisher = "Universität Tübingen", year = "2003", month = "Feb", day = "07", url = "https://timms.uni-tuebingen.de:443/tp/UT_20030207_001_gdchvortrag_0001", urldate = "2024-11-23" }