@book { KindheitundJugendinderDDR,
    title = "Kindheit und Jugend in der DDR",
    author = "Patricia  {Beckmann}",
    year = "2013",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656416425",
    url = "https://www.hausarbeiten.de/document/213294"
}