@book { DieWertpapierbrseundihrTrger,
    title = "Die Wertpapierbörse und ihr Träger",
    author = "Oliver {Lorenz}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1098161"
}