@book { KontaktverweigerungundUnterhaltsrecht,
    title = "Kontaktverweigerung und Unterhaltsrecht",
    author = "Michaela {Schulte}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1088595"
}