TY - JOUR AU - D. V. Shurkaeva TI - Distortion of the triangle isoperimetricity coefficient under quasiconformal mapping JO - Matematičeskaâ fizika i kompʹûternoe modelirovanie PY - 2020 SP - 22 EP - 31 VL - 23 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VVGUM_2020_23_1_a2/ LA - ru ID - VVGUM_2020_23_1_a2 ER -