@Article{497507,
     author = "Małgorzata Bednarczyk, Ewa Wszendybył-Skulska",
     title = "Synergy as a Value Generator in Tourism",
     year =  2014,
     volume =  ,
     number =  4 (28),
     journal =  Ekonomiczne Problemy Turystyki,
     pages =  s. 9-21,
    }