@book { DiespteChormusikvonGyrgyLigeti,
    title = "Die späte Chormusik von György Ligeti",
    author = "Bernd {Englbrecht}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1091598"
}