@book { ImportanceandAssessmentofGlobalResources,
    title = "Importance and Assessment of Global Resources",
    author = "Michael {Nippa} and Peter {Kausch}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1093838"
}