@online{
   timsrc,
   author = "Walden, Peter",
   title = "HLA class I and antigen presentation in cancer cells",
   publisher = "Universität Tübingen",
   year = "2001",
   month = "Jul",
   day = "19",
   url = "https://timms.uni-tuebingen.de:443/tp/UT_20010719_001_antigen_0007",
   urldate = "2024-04-26"
}