@book { PdagogischePsychologie,
    title = "Pädagogische Psychologie",
    author = "René {Paasch}",
    year = "2013",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656512028",
    url = "https://m.hausarbeiten.de/document/262578"
}