@online{ timsrc, author = "Kohler, Wilhelm", title = "Lecture Macroeconomics II, 18. Lesson", publisher = "Universität Tübingen", year = "2019", month = "Dec", day = "18", url = "https://timms.uni-tuebingen.de:443/tp/UT_20191218_002_makrooeko2_0001", urldate = "2024-03-28" }