@online{
   timsrc,
   author = "Haussmann, Helmut",
   title = "Vorlesung Grundlagen der Marktführerschaft, 7. und 8. Stunde",
   publisher = "Universität Tübingen",
   year = "2021",
   month = "Jul",
   day = "08",
   url = "https://timms.uni-tuebingen.de:443/tp/UT_20210708_001_sose21grundmarkt_0001",
   urldate = "2024-04-27"
}