@book { DerPfandbriefundseinTreuhnder,
    title = "Der Pfandbrief und sein Treuhänder",
    author = "Arkadiusz {Wudarski}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1101300"
}