TY - JOUR AU - V. M. Imaykin TI - Teaching the Elements of Group Theory at School JO - Matematičeskoe obrazovanie PY - 2009 SP - 17 EP - 26 IS - 3 UR - http://geodesic.mathdoc.fr/item/MO_2009_3_a2/ LA - ru ID - MO_2009_3_a2 ER -