@book{ title = "Kommentar zum Tristan-Roman Gottfrieds von Straßburg", author = "Okken, Lambertus,Haage, Bernhard D.", year = "1988", publisher = "Rodopi", address = "Amsterdam", language = "ger", howpublished = "print", isbn = "9051830750", note = "Literaturangaben", series = "Amsterdamer Publikationen zur Sprache und Literatur, 81", }