@online{
   timsrc,
   author = "Röhl, Hans-Joachim",
   title = "Grabung Posidonienschiefer, Dotternhausen",
   publisher = "Universität Tübingen",
   year = "2002",
   month = "Jan",
   day = "25",
   url = "https://timms.uni-tuebingen.de:443/tp/UT_20020125_001_geograb_0001",
   urldate = "2024-05-12"
}