@book { Hundebelohnenaberrichtig,
    title = "Hunde belohnen – aber richtig",
    author = "Sabrina {Reichel}",
    year = "2013",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656537281",
    url = "https://www.hausarbeiten.de/document/264449"
}