@Article{497508,
     author = "Leszek Butowski",
     title = "Ontological and Epistemological Foundations of Tourism Research : Scientific Identity of Polish Scholars of Tourism",
     year =  2014,
     volume =  ,
     number =  4 (28),
     journal =  Ekonomiczne Problemy Turystyki,
     pages =  s. 23-38,
    }