@online{
   timsrc,
   author = "Alkofer, Reinhard",
   title = "Symmetrie in Wissenschaft und Kunst I - Eichsymmetrie im Standardmodell der Teilchenphysik",
   publisher = "Universität Tübingen",
   year = "2002",
   month = "Jan",
   day = "07",
   url = "https://timms.uni-tuebingen.de:443/tp/UT_20020107_001_symmetrie_0001",
   urldate = "2024-05-04"
}