@Article{450344,
     author = "Erika Figula, Ferenc Margitics, Ágnes Petneháziné Harsányi",
     title = "The characteristics of students who become bullies through school bullying",
     year =  2012,
     volume =  ,
     number =  2(2),
     journal =  Journal of Preschool and Elementary School Education,
     pages =  s. 49-67,
    }