@online{ timsrc, author = "Gülch, Rainer", title = "Videobuch Atmung aus Sicht eines Physiologen, Teil 4", publisher = "Universität Tübingen", year = "2020", month = "Dec", day = "31", url = "https://timms.uni-tuebingen.de:443/tp/UT_20201231_001_physatmung_0001", urldate = "2024-11-22" }