@online{ timsrc, author = "Freyermuth, Gundolf S.", title = "Game Studies und Game Design", publisher = "Universität Tübingen", year = "2013", month = "May", day = "14", url = "https://timms.uni-tuebingen.de:443/tp/UT_20130514_001_rvgame_0001", urldate = "2024-11-23" }