@book { DieStiftung,
    title = "Die Stiftung",
    subtitle = "Jahreshefte zum Stiftungswesen – 12. Jahrgang, 2018",
    author = "Karlheinz {Muscheler} and Matthias {Gantenbrink} and Axel {Janitzki} and Markus {Schewe} and Sebastian {Trappe}",
    year = "2018",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b15053",
    url = "https://www.peterlang.com/document/1057750"
}