@book { LernermerkmaleLernertypenLernverhalten,
    title = "Lernermerkmale, Lernertypen, Lernverhalten",
    author = "Ulrike {Quast}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1107871"
}