@book { JungeMtterSchwangerschafteninderAdoleszenz,
    title = "Junge Mütter - Schwangerschaften in der Adoleszenz",
    author = "Julia {Artelt}",
    year = "2011",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783842810174",
    url = "https://m.diplom.de/document/228324"
}