@book { FuzzyKonzeptefrJustinTimeProduktionundBeschaffung,
    title = "Fuzzy-Konzepte für Just in Time-Produktion und -Beschaffung",
    author = "Michael {Urban}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1086649"
}