@Article{520163,
     author = "Alina Kalinowska, Adam Stański",
     title = "Po co matematykom Jan Jakub Rousseau?",
     year =  2015,
     volume =  11,
     number =  3(30),
     journal =  Problemy Wczesnej Edukacji/Issues in Early Education,
     pages =  s. 121-125,
    }