TY - JOUR AU - S. V. Zharov TI - Generalization of the concept of centroid in solving stereometric problems JO - Matematičeskoe obrazovanie PY - 2022 SP - 26 EP - 27 VL - 104 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MO_2022_104_4_a3/ LA - ru ID - MO_2022_104_4_a3 ER -