@book { DiagnostikinderPdagogischenPsychologie,
    title = "Diagnostik in der Pädagogischen Psychologie",
    author = "Kevser {Ekin}",
    year = "2011",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640847211",
    url = "https://www.hausarbeiten.de/document/167767"
}