@book { PerzipierteselterlichesErziehungsverhalten,
    title = "Perzipiertes elterliches Erziehungsverhalten",
    author = "Jörg {Schumacher}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1093996"
}