@book { samGlobalEnvironmentalResources,
    title = "samGlobal Environmental Resources",
    subtitle = "The Ozone Problem",
    author = " {Anonym}",
    year = "1983",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b14074",
    url = "https://www.peterlang.com/document/1068602"
}