@book { ExternesUmweltschutzReportingimRahmeneinesstakeholderorientiertenControlling,
    title = "Externes Umweltschutz-Reporting im Rahmen eines stakeholderorientierten Controlling",
    author = "Herbert {Daldrup}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1093965"
}