TY - JOUR AU - E. G. Smoljanova TI - Application of invariants for involution transforms of a triangle for recognition of graphic images JO - Matematičeskoe obrazovanie PY - 2019 SP - 38 EP - 42 VL - 89 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MO_2019_89_1_a5/ LA - ru ID - MO_2019_89_1_a5 ER -