@book { DieIPRAnknpfungderSchuldvertrge,
    title = "Die IPR-Anknüpfung der Schuldverträge",
    author = "Mohamed {Lakmes}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1100067"
}