@Article{612300,
     author = "Elżbieta Czarny, Małgorzata Żmuda",
     title = "Changes in the export competitiveness of the Visegrad Group and Germany in years 2004-2014 – Is there convergence? ",
     year =  2017,
     volume =  17,
     number =  2,
     journal =  Roczniki Administracji i Prawa,
     pages =  s. 49-64,
    }