TY - JOUR AU - S. V. Buyalo TI - Symmetries of double ratios and an equation for M\"obius structures JO - Algebra i analiz PY - 2021 SP - 67 EP - 80 VL - 33 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AA_2021_33_1_a2/ LA - ru ID - AA_2021_33_1_a2 ER -