@book { PortfoliozurAuswertungdesAllgemeinenSchulpraktikumsASP,
    title = "Portfolio zur Auswertung des Allgemeinen Schulpraktikums (ASP)",
    author = "",
    year = "2018",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    url = "https://www.hausarbeiten.de/document/412430"
}