@online{
   timsrc,
   author = "Cederbaum, Carla",
   title = "Vorlesung Geometrie, 21. und 22. Stunde",
   publisher = "Universität Tübingen",
   year = "2022",
   month = "Nov",
   day = "25",
   url = "https://timms.uni-tuebingen.de:443/tp/UT_20221125_001_ws2223geomet_0001",
   urldate = "2024-04-20"
}