@book { DasGottesproblem,
    title = "Das Gottesproblem",
    subtitle = "Die Wissenschaft von gestern und das Universum von heute",
    author = "Gero {Jenner}",
    year = "2003",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1095372"
}