TY - JOUR AU - A. M. Iglitsky TI - On non-trivial cases of intersections of a diagonals on its symmetry axis JO - Matematičeskoe obrazovanie PY - 2020 SP - 28 EP - 35 VL - 93 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MO_2020_93_1_a3/ LA - ru ID - MO_2020_93_1_a3 ER -