@book { WandernimNscht,
    title = "Wandern im Nüscht",
    subtitle = "Die schönsten Wanderungen durch die Altmark",
    author = "Sibylle {Sperling} and Amanda {Hasenfusz}",
    year = "2022",
    publisher = "Omnino Verlag",
    address = "Berlin, Deutschland",
    url = "https://shop.omnino-verlag.de/document/1027488"
}