@book { MusikfrdieNation,
    title = "Musik für die Nation",
    subtitle = "Der Komponist Stanisław Moniuszko (1819-1872) in der polnischen Nationalbewegung des 19. Jahrhunderts",
    author = "Rüdiger {Ritter}",
    year = "2006",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1099111"
}