TY - JOUR AU - N. V. Shirvanyan AU - V. L. Shirvanyan TI - On presentation of the group $7.7$ from Kourov notebook JO - Proceedings of the Yerevan State University. Physical and mathematical sciences PY - 2005 SP - 141 EP - 142 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/UZERU_2005_3_a8/ LA - ru ID - UZERU_2005_3_a8 ER -