@online{ timsrc, author = "Kley, Wilhelm", title = "Die Enträtselung des Universums", publisher = "Universität Tübingen", year = "2007", month = "Dec", day = "18", url = "https://timms.uni-tuebingen.de:443/tp/UT_20071218_001_rvunivers_0001", urldate = "2024-11-19" }