@book { MeinSchatzistZwillinge,
    title = "Mein Schatz ist Zwillinge",
    author = "Erich {Bauer}",
    year = "2012",
    publisher = "dotbooks Verlag",
    address = "München, Deutschland",
    doi = "10.3239/9783943835441",
    url = "https://m.dotbooks.de/document/196129"
}