@Article{504701,
     author = "Agnieszka Budziewicz-Guźlecka",
     title = "Selected aspects of the telecommunication market : examples of Poland and Denmark",
     year =  2016,
     volume =  ,
     number =  122,
     journal =  Ekonomiczne Problemy Usług,
     pages =  s. 9-14,
    }