@online{ timsrc, author = "Kohler, Wilhelm", title = "Lecture Macroeconomics II, 27. and 28. Lesson", publisher = "Universität Tübingen", year = "2020", month = "Feb", day = "05", url = "https://timms.uni-tuebingen.de:443/tp/UT_20200205_001_makrooeko2_0001", urldate = "2024-11-23" }