@book { PolishMediaSysteminaComparativePerspective,
    title = "Polish Media System in a Comparative Perspective",
    author = "Bogusława {Dobek-Ostrowska}",
    year = "2019",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b15173",
    url = "https://www.peterlang.com/document/1068717"
}