@book { MotivationsfrderunginSchuleundUnterricht,
    title = "Motivationsförderung in Schule und Unterricht",
    author = "Volker {Ahmad Qasir}",
    year = "2013",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656477518",
    url = "https://www.hausarbeiten.de/document/231214"
}