@Article{450431,
     author = "Rozalina Engels-Kritidis",
     title = "Children in the world of allegory : the key role of comparison skills and abstract thinking",
     year =  2014,
     volume =  ,
     number =  2(6),
     journal =  Journal of Preschool and Elementary School Education,
     pages =  s. 107-133,
    }