@book { VomReformsozialismuszurSystemtransformationinUngarn,
    title = "Vom Reformsozialismus zur Systemtransformation in Ungarn",
    author = "Andreas {Schmidt-Schweizer}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1090541"
}