@book { BusinessplanfrdiefiktiveGeschenkeTeeBoutiqueGiftBeutel,
    title = "Businessplan für die fiktive Geschenke & Tee Boutique Gift – Beutel",
    author = "Birgit {van Gellekom}",
    year = "2010",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640643745",
    url = "https://www.hausarbeiten.de/document/152556"
}