TY - JOUR AU - B. P. Fedorov AU - S. B. Bogdanova AU - S. O. Gladkov TI - On some unknown results related to the nontrivial properties of ordinary triangles. part 1 JO - Vestnik KRAUNC. Fiziko-matematičeskie nauki PY - 2021 SP - 216 EP - 234 VL - 37 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VKAM_2021_37_4_a19/ LA - ru ID - VKAM_2021_37_4_a19 ER -