@Article{585157,
     author = "Przemysław Tomczyk",
     title = "Customer knowledge valuation model based on customer lifecycle",
     year =  2016,
     volume =  ,
     number =  5 (46),
     journal =  Marketing i Zarządzanie (d. Problemy Zarządzania, Finansów i Marketingu),
     pages =  s. 87-94,
    }