@book { RealeAuenwirtschaftundEuropischeIntegration,
    title = "Reale Außenwirtschaft und Europäische Integration",
    author = "Fritz {Breuss}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1097098"
}