@book { DerSchutzderStiftungvorEinflunahmeDritter,
    title = "Der Schutz der Stiftung vor Einflußnahme Dritter",
    author = "Pia Maria {Aigner}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1089643"
}