@online{ timsrc, author = "Deitmar, Anton", title = "Vorlesung Lineare Algebra 2, 21. Stunde", publisher = "Universität Tübingen", year = "2014", month = "May", day = "20", url = "https://timms.uni-tuebingen.de:443/tp/UT_20140520_001_lineal2_0001", urldate = "2024-11-23" }