@Article{497213,
     author = "Małgorzata Januszewska, Daria E. Jaremen, Elżbieta Nawrocka",
     title = "The Innovation System of a Tourist Enterprise : a Model Approach",
     year =  2015,
     volume =  ,
     number =  4 (32),
     journal =  Ekonomiczne Problemy Turystyki,
     pages =  s. 7-18,
    }