@book { LangsamkehrtendieFarbenzurck,
    title = "Langsam kehrten die Farben zurück",
    author = "Jörg {Eggerts}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1093213"
}