@online{ timsrc, author = "Werner, Klaus", title = "17th European White Dwarf Workshop: HST/COS Spectroscopy of H1504+65", publisher = "Universität Tübingen", year = "2010", month = "Aug", day = "16", url = "https://timms.uni-tuebingen.de:443/tp/UT_20100816_013_eurowd_0001", urldate = "2024-03-28" }