@online{ timsrc, author = "Dunker, Ralf", title = "Energy is here - Presentation of the juwi group", publisher = "Universität Tübingen", year = "2010", month = "Sep", day = "22", url = "https://timms.uni-tuebingen.de:443/tp/UT_20100922_001_summit_0001", urldate = "2024-11-23" }