@Article{336725,
     author = "Maciej Tarkowski",
     title = "Components of the actual population increase in the Tri-City agglomeration in the years 1980-2000 ",
     year =  2004,
     volume =  ,
     number =  3,
     journal =  Bulletin of Geography. Socio-Economic Series,
     pages =  s. 11-21,
    }