@Article{212411,
     author = "Gerard Labuda",
     title = "Vierzigjähriges Bestehen der Volksrepublik Polen (1944-1984) ",
     year =  1984 (wyd. 1985-1986),
     volume =  3,
     number =  3-4,
     journal =  Acta Academiae Scientiarum Polonae,
     pages =  s. 3-9,
    }