@book { DerRechtsbehelfderMinderungnachdemUNKaufrechtCISG,
    title = "Der Rechtsbehelf der Minderung nach dem UN-Kaufrecht (CISG)",
    author = "Matthias {Hirner}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1089467"
}