@book { KoalitionsfreiheitTarifvorrangundTarifvorbehalt,
    title = "Koalitionsfreiheit, Tarifvorrang und Tarifvorbehalt",
    author = "Olaf {Meisen}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1103428"
}