@Article{579172,
     author = "Józef Haczyński",
     title = "Happy and Healthy Aging : The Analysis of the Relationship Between Age, Health, Education and Happiness on International Social Survey Programme Data ",
     year =  2016,
     volume =  14,
     number =  2 (2),
     journal =  Problemy Zarządzania,
     pages =  s. 24-39,
    }