@book { ProduktorientiertesKostenmanagementinderchemischenIndustrie,
    title = "Produktorientiertes Kostenmanagement in der chemischen Industrie",
    author = "Simon {Esser}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1107903"
}