@book { ErziehungBildungundLernen,
    title = "Erziehung, Bildung und Lernen",
    author = "Candy {Pfeifer}",
    year = "2001",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640034949",
    url = "https://www.hausarbeiten.de/document/105197"
}