@online{ timsrc, author = "Kohler, Wilhelm", title = "Lecture Macroeconomics II, 17. and 18. Lesson", publisher = "Universität Tübingen", year = "2021", month = "Dec", day = "20", url = "https://timms.uni-tuebingen.de:443/tp/UT_20211220_001_ws2022macroeco2_0001", urldate = "2024-11-23" }