@book { GerchtealsKapitalmarktinformationen,
    title = "Gerüchte als Kapitalmarktinformationen",
    author = "Matthias {Neumann}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1135666"
}