@book { IntheShadowoftheIronCurtain,
    title = "In the Shadow of the Iron Curtain",
    author = "Grzegorz {Piotrowski}",
    year = "2017",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-07247-1",
    url = "https://www.peterlang.com/document/1050676"
}