@book { LabourProtestinPoland,
    title = "Labour Protest in Poland",
    author = "Michał {Wenzel}",
    year = "2016",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-06317-2",
    url = "https://www.peterlang.com/document/1049855"
}