@Article{78230,
     author = "Władysław Lubaś",
     title = "Social determinants of the development of the Polish language in People's Poland ",
     year =  1985 (wyd. 1986-1987),
     volume =  4,
     number =  1,
     journal =  Acta Academiae Scientiarum Polonae,
     pages =  s. 81-90,
    }