@book { TreuundGlaubenundUNKaufrechtCISG,
    title = "Treu und Glauben und UN-Kaufrecht (CISG)",
    author = "Bawar {Bammarny}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1107982"
}