@online{ timsrc, author = "Strand, Roger", title = "PNS 3 Symposium: Keynote R. Strand", publisher = "Universität Tübingen", year = "2017", month = "Sep", day = "25", url = "https://timms.uni-tuebingen.de:443/tp/UT_20170925_002_pns3_0001", urldate = "2024-12-28" }