@book { DieErderettenImSystemBuch3LitRPGSerie,
    title = "Die Erde retten (Im System Buch #3): LitRPG-Serie",
    author = "Petr {Zhgulyov}",
    year = "2022",
    publisher = "Magic Dome Books",
    address = ", Deutschland",
    url = "https://tolino.openpublishing.com/document/1310099"
}