@book { TrustFiduciaundfiduziarischeTreuhand,
    title = "Trust, Fiducia und fiduziarische Treuhand",
    author = "Josef {Wolff}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1099386"
}