@book { NachhaltigkeitderStaatsverschuldung,
    title = "Nachhaltigkeit der Staatsverschuldung",
    author = "Reinhard {Neck} and Robert {Holzmann}",
    year = "2017",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b10753",
    url = "https://www.peterlang.com/document/1055147"
}