@book { DerBullwhipEffektUrsachenAuswirkungenLsungen,
    title = "Der Bullwhip-Effekt. Ursachen, Auswirkungen, Lösungen",
    author = "Thomas {Wichert}",
    year = "2013",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656494690",
    url = "https://www.hausarbeiten.de/document/233114"
}