@book { NormaleVerhltnisse,
    title = "Normale Verhältnisse",
    author = "Horst-Dieter {Radke}",
    year = "2012",
    publisher = "dotbooks Verlag",
    address = "München, Deutschland",
    doi = "10.3239/9783943835571",
    url = "https://m.dotbooks.de/document/199225"
}