@book { ZuremotionalenBefindlichkeitvonJugendlicheninderSchule,
    title = "Zur emotionalen Befindlichkeit von Jugendlichen in der Schule",
    author = "Jutta {Schultze-Lutter}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1103708"
}