@book { BerufsausbildungimDualenSystemeinelohnendeInvestition,
    title = "Berufsausbildung im Dualen System – eine lohnende Investition?",
    author = "Stefan {Grossmann} and Hans Ludwig {Meyer}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1094131"
}