@book { SanktionierungvonUnternehmen,
    title = "Sanktionierung von Unternehmen",
    author = "Michaela {Lenk}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b17485",
    url = "https://www.peterlang.com/document/1058765"
}