@Article{484401,
     author = "Joanna Stefaniak-Kopoboru, Joanna Kuczewska",
     title = "Export Specialization in Services of the Visegrad Countries",
     year =  2016,
     volume =  11,
     number =  2,
     journal =  Equilibrium. Quarterly Journal of Economics and Economic Policy,
     pages =  s. 265-284,
    }