@book { DiedemokratischeStrukturvonSpartengewerkschaften,
    title = "Die demokratische Struktur von Spartengewerkschaften",
    author = "Alexander {Fuest}",
    year = "2012",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-01759-5",
    url = "https://www.peterlang.com/document/1046709"
}