@book { DieDeterminantenderProduktqualittausSichtvonKonsumenten,
    title = "Die Determinanten der Produktqualität aus Sicht von Konsumenten",
    author = "Marcus {Stratmann}",
    year = "1999",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1087288"
}