@Article{497242,
     author = "Anna Pawlikowska-Piechotka, Anna Ostrowska-Tryzno",
     title = "Innovative Local Community Partnership and Sustainable Urban Tourism : the Old Town in Warsaw",
     year =  2015,
     volume =  ,
     number =  3 (31),
     journal =  Ekonomiczne Problemy Turystyki,
     pages =  s. 139-158,
    }