@book { GruppenbasiertesLerneninvirtuellenSeminaren,
    title = "Gruppenbasiertes Lernen in virtuellen Seminaren",
    author = "Heide {Schmidtmann}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1099619"
}