@Article{585030,
     author = "Barbara Szymoniuk",
     title = "Sferyczny model komunikacji marketingowej",
     year =  2017,
     volume =  ,
     number =  3 (49),
     journal =  Marketing i Zarządzanie (d. Problemy Zarządzania, Finansów i Marketingu),
     pages =  s. 193-208,
    }