@book { GustavMahlersKindertotenlieder,
    title = "Gustav Mahlers «Kindertotenlieder»",
    author = "Alexander {Odefey}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1088145"
}