@book { YogadieKunstKrperGeistundSeelezuformen,
    title = "Yoga - die Kunst, Körper, Geist und Seele zu formen",
    author = "Carla {Vieira}",
    year = "2005",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    url = "https://m.diplom.de/document/223684"
}