@Article{406662,
     author = "Marianna Księżyk, Marek Ł. Michalski",
     title = "The need and conditions for a common socio-economic policy in European Union Countries",
     year =  2008,
     volume =  4,
     number =  ,
     journal =  Managerial Economics,
     pages =  s. 71-82,
    }