TY - JOUR AU - È. A. Vitrichenko TI - On the second $6$m-mirror of BTA JO - Doklady Akademii Nauk PY - 1982 SP - 53 EP - 55 VL - 266 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1982_266_1_a10/ LA - ru ID - DAN_1982_266_1_a10 ER -