@Article{507970,
     author = "Przemysław Maj, Waldemar Paruch",
     title = "The concept of „political system” in political science research in Poland – aspects and controversies related to the concept’s definition",
     year =  2008,
     volume =  ,
     number =  5,
     journal =  Polityka i Społeczeństwo,
     pages =  s. 75-84,
    }