@online{ timsrc, author = "Baumann, Ulrich", title = "Ringvorlesung Biochemie - Proteinstrukturen", publisher = "Universität Tübingen", year = "2002", month = "Jul", day = "12", url = "https://timms.uni-tuebingen.de:443/tp/UT_20020712_001_rvbiochem_0001", urldate = "2024-12-26" }