Ari Kaukiainen, Christina Salmivalli, Kirsti Lagerspetz, Milla Tamminen, Marja Vauras, Hanna Mäki, Elisa Poskiparta,
Learning difficulties, social intelligence, and self-concept: connections to bully-victim problems. Scandinavian Journal of Psychology. ,vol. 43, pp. 269- 278 ,(2002) ,
10.1111/1467-9450.00295