@book { BeruflicheWeiterbildunginVolkshochschulen,
    title = "Berufliche Weiterbildung in Volkshochschulen",
    author = "Marion {Fleige} and Wiltrud {Gieseke} and Aiga {von Hippel} and Maria {Stimm}",
    year = "2022",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b19878",
    url = "https://www.peterlang.com/document/1278397"
}