@book { GemeinsameelterlicheSorgeinscheidungssoziologischerPerspektive,
    title = "Gemeinsame elterliche Sorge in scheidungssoziologischer Perspektive",
    author = "Stephanie {Matthiessen}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1098213"
}