@online{ timsrc, author = "Jochum, Josef", title = "Lecture Astroparticle Physics - Dark Matter, 4. Lesson", publisher = "Universität Tübingen", year = "2005", month = "Apr", day = "25", url = "https://timms.uni-tuebingen.de:443/tp/UT_20050425_002_astrophys_0001", urldate = "2024-11-23" }