@book { DieInsolvenzdesUnternehmersinPolen,
    title = "Die Insolvenz des Unternehmers in Polen",
    author = "Thomas {Paintner}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1095595"
}